I am 17 years and I am just looking for some insight on what is wrong with me. For about the past 5 years, I have had these symptoms:

difficulty falling asleep and staying asleep (consequently I am often tired)
dizziness when standing up or getting up
excessive sweating
hunger (I feel like I eat all the time)
shakiness/nervousness for no reason
I am always hot


Also, within the past year and a half, I haven't gained any weight. I am just about 5'4 and weigh 108 lbs. I also have asthma and seasonal allergies (I take pulmicort twice daily, singulair and zyrtec).

Other than that, I am a healthy teenager. I love swimming and exercise daily. Sorry for the long post and thank you for the support!