Your symptoms are complex and could come from many medical reasons. I suggest you get a comprehensive examination by a good internist to begin with then go to any specialists he/she recommends. Your other choice is to go to a comprehensive medical center that has several specialists evaluate you together as a team to efficiently diagnose the problem by using best practices and develop a plan that is holistic. It's incredibly important that you get a complete assessment especially since you're so young. Wishing you all the best. 🙂