Hello Friend, Good that you are seeking a help here. You hair dryness is just a symptoms of underneath emotional disturbance in your mind. Your other health condition like weight gain, body pain, acne, lack of interest etc are symptoms of such emotions distress. Suggest you to look for a holistic treatment approach to address both body and emotional symptoms. Feel free to reach me online or through Lybrate chat for further evaluation of your both physical and mental symptoms condition to isolate the root cause behind hair, weight gain and other problems.