I am 20 years old and have a hard time keeping up 105lbs i have to stuff myself everytime i eat to stay at 105 i eat alot and my family their all small too but i am still smaller than everyone my dad told someone he thought i was on drugs before and never would even think about anything of that sort i want to gain weight not lose it but im too thin and i need help what should i do....
also i have went to the doctor for help and they didn't know what to tell me my thyroid is fine and my metabalisiom isnt even that fast its fast but not faster than my bigger sister

ive been trying for years to no avail!