Puzzled

So I'm not quite sure what's going on with me. This isn't the first time this has happened, but I thought I had the issue figured out already. Basically, I used to occasionally experience these episodes of suddenly not being able to breathe, see, or hear very well. I would first have trouble breathing correctly, then see spots instead of what's in front of me, and then the vision becomes blurred altogether. Next, my body would almost lose control of itself, like I couldn't stand up correctly. Everything just feels warm, blurred, and as if I don't have my 5 senses anymore. I used to think the cause was a poor diet or dehydration because of my first two episodes back in 8th grade and 11th grade. But it happened again randomly a year or two later, and it happened again just yesterday. I had definitely eaten and drank fluids, so what's the real problem?

It was pretty scary because I walked into the cafe like I normally would on a school day, but I began to feel very hot and stuffy. Then I started feeling sick and had a little trouble breathing so I grabbed some free water (yeah free water~) and sat down before ordering. The discomfort wouldn't go away and I started to remove my scarf, and then jacket, and felt the urge to just strip off as much unnecessary clothing as possible. I felt a little better for a minute so I went over to order my food, figuring that I should just stay here and eat because I need something in my body right now. But then it was happening again, and this time I couldn't see, hear, breathe, or walk properly. I almost left my credit card with the cashier because I had that much trouble concentrating and standing up. I felt so bad for the cashier because I must have come off rude or like I was on drugs. With that being said, I guess I'm much stronger than I thought because I was able to fight against physically collapsing on the floor (as much as my body wanted to). This was probably one of the scarier episodes I had because it was more intense, and the other times I had a friend with me to ask for help. Thankfully, I called Erica to give me a ride home because I was scared that it might happen again on my way home alone.

Lauren used to speculate that I had anemia, which would make sense except for the fact that my doctor told me my blood count was fine. I dunno, but I would like to know what I have in case it happens again so that I can be better prepared. So basically I didn't get any studying done yesterday, and I have 3 finals tomorrow and 1 on Thursday. Whoo, wish me luck. If you have any clue as to what I may have please let me know. I'd appreciate the help.

Stay safe and warm~