I'm 25 years old, 6 ft. tall, and weigh an incredibly low 125 lbs...
I've pursued my weight problem a few times (I've always been very skinny) and it never led me anywhere. When I was 22 I underwent all these tests for Marfan's Syndrome, since I have a heart murmur, but that was ruled out. They said that though phenotypically I fit the bill of a Marfan's patient, I (thank God) do not actually have the disease. Around the same time I went to a gastrointerologist who ruled out Crohn's disease and Ciliac, saying nothing abnormal showed up in the colonoscopy.
Then, about a year and a half ago, I read some stuff about hyperthyroidism and I really thought I might have that as I fit a bunch of those symptoms as well. That was ruled out very quickly in a pretty thorough blood test. However, the test did turn up a very low cholesterol level, which is no surprise considering how underweight I am.
Aside from being extremely underweight, I also have fairly frequent bowel movements (I can go months with 2-3 a day, but have gone through periods where I'll have 3-5 a day).
I also started exercising a little over a year ago, run and lift weights twice a week. I have not gained any weight and only noticed a very slight change in muscle definition. In fact, one disconcerting thing about exercising is that I know most people gain energy from working out, but I'm more tired on the days I exercise than the days I don't. Overall, I'd say I have a pretty low energy level, am often tired, and don't get the boost I should from
These failed pursuits to find out what is causing me to be so underweight are extremely frustrating. At one point I even had a nutritionist suggest to me that I should just eat more and even smoke weed to increase my appetite (that was in San Francisco, no surprise). However, I eat what I can eat, and I think I eat pretty healthy, making sure that I get a steady intake of protein and fat by consuming eggs, fatty yogurts, stuff like that. As of a few years ago, I stopped eating beef and don't eat as much meat as I used to, though I still eat poultry a few times a week. However, my being underweight greatly predates this change in my diet and I actually feel better since I cut beef out, so I am pretty sure that has no bearing on my weight.
So at this point I am willing to take another go at it and meet with more doctors and be more insistent that there is actually something wrong with my body, but I don't want to run into more dead-ends that consist of doctors telling me what I do NOT have. I am the skinniest person I know and the few people who I have revealed my weight to are in disbelief when I tell them. I'm not looking to turn into Schwarzenegger either; I just want to be at a healthy weight. Am I wrong for thinking that this problem goes deeper than just not eating enough? Any suggestions would be much appreciated. I am currently doing a little online research into malabsorption, but past experiences have taught me not to diagnose myself online.
Thank you for reading.