Am I becoming "allergic" to coasters?

Ok, so obviously I'm not literally becoming allergic to them, but something along the lines of it. I've noticed over this last summer that when I rode a lot of the coasters, I started getting out. My vision went completely black during Millenium, but was fine in the dragster. This past week, I went to universal studios and when on the Dragon Challenge and noticed that my vision started to get a little fuzzy during the more intense parts of the ride. Before my trip to Cedar Point last summer, I had never experienced this before, and I don't know why it's happening now.
I thought it was because I only got one hour of sleep the night before I went to cedar point, but even with 6+ hours of sleep the night before universal, it still started happening.
Does anyone have an explanation for this? I love coasters with all of my heart, but this is starting to scare me.
I'm going to cedar point again this may for my AP Calc field trip, so I'm hoping that whatever is happening to me is fixed by then.
Thanks!

This question should be asked of your physician-
Nobody here knows or needs to know your specific physical conditions (weight,blood pressure, etc...)

All you will get on here is wild speculation and you will probably end up worrying yourself more about uninformed diagnosises than actually getting medical advice.

It is never a good idea to guess at medical symptoms online as there are just way too many possibilities and even more online "experts" that know exactly what's up because Aunt Gertrudes cousin Billy knew a person who had the exact thing happen.

I'm sure what you are experiencing is something that a doctor could address rather quickly for you, there's still time before your May field trip to try and get an appointment.

Your daily diet could have an effect on those things too.

If greying out for a few seconds on a ride was a serious problem I'd be long gone from all the times it's happened to me on Millennium. You have to expect going 90+ mph, 300 foot drops, and sudden acceleration and turns to have some kind of g-force effect on your body. Sometimes it results in greying out for a second.

When I worked at Cedar Point on Millennium Force, I would black out on test rides in the morning. Not just grey out or start to get tunnel vision, I'm talking total blackout. This occurred particularly on the bottom of the first drop and then on the turn through the first tunnel. This is because the ride pulls moderate G forces, somewhere over 4 G's. It happened to be particularly intense on mornings when I was quite relaxed. On several occasions, I used military pilot techniques to deal with high G forces, namely by tightening every muscle that I could think of. The greying out or blacking out will go away very rapidly.

What is happening to your body is that the blood is being forced downward towards your legs and torso. This deprives your brain of oxygen so it stops functioning normally rather quickly as it is the most sensitive organ to loss of oxygen in your body. As bad as that may sound, it is not an issue for a healthy person as long as the duration isn't sustained for a long period of time. Millennium Force and Top Thrill Dragster only sustain moderate G forces for a few seconds while it takes a few minutes of oxygen deprivation to cause actual brain damage. Fighter pilots and acrobatic pilots pull more Gs for longer durations and do so repeatedly for years and sometime even decades. They do so with no known health implications.

There was a push back in 1999 by the NTSB to put acrobatic restrictions on pilots with cardiac issues and taking blood pressure medication. The FAA and AOPA found that there wasn't a case as only 7 out of 231 accidents between 1993 and 1999 had cardiac issues or were taking blood pressure medication that would be restricted in their proposal. Of the 7, 4 did not hold a valid medical so they were not flying legally. As a side note, I hold a third class medical certificate and can perform acrobatics. The exam for that isn't much more than a physical and a thorough eye exam.

If you don't have any major health issues, then you can ride any roller coaster without issues. To ensure that you don't have any major health issues, make sure that you get an annual physical from your Primary Care Physician (PCP). In particular, they check your blood pressure and listen to your heart for any abnormalities. If you haven't had a physical in the past year or don't have a PCP, I would recommend you getting one. If you have any questions or concerns, I suggest that you bring those up with your PCP. They have your medical records, know the current state of your health, they have extensive knowledge and thus would be the best resource.

I think a lot of people black/grey out on Millennium. Millennium is also the only coaster that makes me feel dizzy when I get off. I also grey out on the Backlot Stunt Coaster at King's Island, which is not that intense. I just thought it was because I am getting old (in my 20s lol).

Yes, you are allergic to coasters. Remedy is to stay out of line, so I can get on faster. (jk)

I grey out on the first MF drop. Occasionally on the Backlot Stunt Coaster. Severely on the Intimiditor 305.

Good to know I'm not alone on Backlot. Looking at it seems like it would be the lamest coaster to grey out on. Sadly I've never been on Intimidator.

I agree with the suggestion to consult your physician if you are truly worried about it.

That said, drinking plenty of water in the days leading up to a CP trip and keeping hydrated at the park has done wonders for me. And, I doubt any physician would suggest you not stay hydrated.

It may be that I am still young, but I have never come close to greying out on Millennium Force. I always make fun of it for being forceless. I do agree with Backlot Stunt Coaster though. That helix is a little too compact for a family coaster.

We are definitely not doctors, and looking online only results in you being convinced you have cancer.

See a real doctor.

In 9th grade health class, the teacher listed off a bunch of symptoms. All of us males were convinced we had the disease he was referring to. And then he said the disease: PMS.

Moral of the story: GO TO A DAMN DOCTOR.

I don't know about allergies, but I do know that our inner ear, a muscle, is like any other muscle in your body. If it isn't exercised regularly it weakens. Children, by and large, don't have much of a problem with motion sickness (of course there are exceptions). The percentage of adults who have motion sickness is significant compared to kids.

Why?

As a child you are frequently exercising your inner ear. You are swinging, tumbling, swinging from Dad's arms, swimming etc. Most adults are pretty sedate. I don't remember the last time I did a somersault, for instance. So, when the inner ear muscle isn't being worked...and it controls balance...you might have a tendency to have motion problems.

I know doctors who have prescribed swinging to adults who are getting ready to go on a cruise in order to get the inner ear working again before they travel. Of course, you could just take a dramamine and sleep through the trip...or coaster ride in this case.

It's all a matter of the type of motion for me. I get instantly queasy if I spin around in my desk chair too quickly, but can ride the intense version of Mission: Space at Epcot with no issue. As we age, certain things can pop up that were never there. I used to love rides like Matterhorn as a kid, now I have no need to go near it. Fortunately I am still good on nearly all the coasters (Wicked Twister being the odd exception for me)

Occasionally at CP I've "seen stars" or started to see dots but the most interesting experience was at gatekeeper media day. My daughter and I went on it something like 12-13 times in a row in the morning. By about the 6th or 7th time I was starting to see spots and the bottom of the first loop. It was interesting because every subsequent ride was a little more. By the time we did it for the last time I went full on crazy spots. A very "drunk-like" feeling. Never had it happen quite that bad since so it must have been the cumulative affect of going over and over again.

I do know if you've had a couple beers (or more) before going on something extreme like MF it definitely tends to happen more.

See a doctor. Also, hydrate, hydrate, hydrate.

I have also noticed myself greying on milly once I hit about 27yo. Im going to ride fury in may, and im thinking about it happening there too. Has anyone noticed it on Fury?

It didn't happen to me on Fury.