What could be wrong with me?

I am on depression pills, am on some pills for headaches. Some for my musical spasms. Am on birth control because I used to have my period every day they were heavy so birth control helped me with getting it on track also helped with zits. Am on med to help me not through up. My acid reflux has been acting up. When I was around 14 1/2 doctors found out I have black dot by my brain they said it wont hurt nothing. But the headaches have been coming a lot more and hurting really bad. I have been keeping up in school. So I can get good grades and do what I want when I grow up. I have been felling sick a lot and sore. Am not sure why. I have trouble breathing. When I take my inhaler it helps but I shake sometimes go into seizures depends how upset I was. Most of the time am having trouble breathing, shaking, I lose my balance a lot my whole tummy has been hurting. When I go to the bathroom sometimes my hurts. I have been peeing a lot. I drink 6 to 8 cups of water a day.