I have this same problem. I am about 5-5 and weighed around 125. Over the past year I lost a huge amount of weight, I was down to 111 and have managed to gain in the last four months about 4 pounds. I can't get past 115 pounds. I feel horrible, I look horrible, I am skin and bones and my veins are all popped out. I do have Thryoid disease, Irritable Bowel Syndrome, possible Raynaurds syndrome and I know that it is a combination of all of these conditions. I just wish I could get up to even 120, I know I would feel better at that weight. I drink Ensure every day and eat as much as possible, but just can't get it back.
I have no suggestions on how to gain weight, I just wish I could get feeling better. Hopefully you can gain some weight back too.
diagnosed with RSD in March of /03, diagnosed with Lupus in Sept./06.Thyroid Disease ,RA,IBS (Irritable Bowel Syndrome) Acid Reflux,
Taking Plaquenell, Folic Acid, Synthroid,Nexium, Singulair,extra Strength tylenol when needed,and Zytram.