I'm starting to think something is wrong with me. I'm 24, 6 ft tall, and have weighed 135 pounds since I was 16 yrs old, and I mean exactly 135, the most my weight has changed is +/- 1 pound. I ate 5+ meals per day for the past 2 weeks in an attempt to try to put on some weight, then jumped on a scale... it read "135.0 pounds", WTF I've tryed all the weight gainers and different diets but just can't seem to put on weight. Is it time to go to the doctor? What kinda tests should I ask for?