Ok so lately and by lately I mean since like a month I have noticed a few things that I suddenly started doing for example I started eating so much more than usual and I wouldn't get full unless there is something to drink along with the food I am eating.. this never happened to me before but that's not all I always feel dehydrated and I drink a lot of water I also started sleeping so much 12 hours of sleep aren't enough for me I also often have stomach ache and... my hair! My hair is falling off so rapidly it became so thin! One more thing.. I am usually the type of person who hates being bored I want to talk all the time and play and go on adventures but lately I became too lazy... I don't talk as much as I used to do and I don't move as much as I used to do. Nothing of what I mentioned changed until yesterday. Yesterday I did not feel like eating but I drank a lot of water and juices and I slept for 7 hours and then my back started paining that I couldn't sleep. 15 minutes after I got up it was fine.
That's my problem I would like to know what is wrong with me am I okay?!
Thanks in advance

I'm no doctor but depending on your true age you may be suffering from growing pains. How old are you?

I turned 15 last month

Have you talked to a parent, teacher, or your doctor? That's the way to go for good guidance and not let those growing pains scare the heck out of you. Part of your angst and curiosity is based on new experiences and feelings and not enough good information and guidance.

The 3 above people can give you the right information, or help you find it.

A few of many topics to discuss with your PARENTS and DOCTOR

In order of most common and least serious, to least common and most serious

Severe diet deficiencies (B vitamin lack makes hair fall out) and dehydration (makes you tired)
Diabetes, either type 1 or 2 (thirst, fatigue)
Chronic (not acute) kidney disease
Thyroid (hypo) or pituitary disorders

DO see a doctor

All right thanks everyone