trembling of legs

Hi, my probleme is that my legs is trembling when i am in sitting postion doing my work or study due to which i cannot concentrate on my studies. I also have probleme of indigestion and food remains undigested and comes out in stool due to which i become very weak and bones are too thin. I cannot sleep with keeping my legs straight i need to fold it . 3 years back i take a homeopathic medicine(tablets) for increasing height whose composition is- baryta carb 200, silicea 200, calc phos 200, thuja occ , i take this for a long period of time around 6- 7 months and also started masturbation during this period due to which my height increases very rapidly and goes on increasing even when i stop taking medicine but i feel weakness in body and my weight not increased with propotion to height and bones and muscles become thin. Now i become too weak and can't do any work , not getting any energy and nutrition from food. Feeling weakness in legs whole day and legs are trembling, eyesight also becomes weak but my memory is good and i am good in studies but health is very poor.i stop masturbating. Please any doctor help me.