I am getting concerned with my health, I have been losing a lot of hair lately and my weight fluctuates from 150 to 180 back and fourth constantly, I have frequent urination to a point where if I walk into or by a bathroom I have to pee. I am 18 years old if that changes anything. I don't know if I should go to a doctor for this and also if there are any thoughts as to what it may be I would love to hear them just so I can maybe get an idea of what's going on! Thanks guys!