I had a thyroidectomy due to benign multi-nodular goiter in 2008, and have been taking levothyroxine since. I continually run a low body temp of 96-97, am always cold, sluggish, overweight, tired, etc.. I have been diagnosed with fibromyalgia, idiopathic hypersomnia, ongoing anemia issues and now have unexplained hives for the last 3 months. My dermatologist requested labs in February: hemoglobin 11.0, hematocrit 33.4, RDW 20.0, MCH 23.8, MCV 72.6, and TSH 0.21. The dermatologist said to see my primary care doctor asap, because of TSH levels, which were causing the hives. My primary care doctor disagreed. I went to an allergist and an endocrinologist and had more labs done in March: hemoglobin 11.1, hematocrit 34.1, RDW 22.2, MCH 24.5, MCV 75.3, TPO 12, thyroglobulin antibodies <1, and TSH 0.74.
My primary care doctor and endocrinologist both say I am hyperthyroid, based on the TSH levels. This is totally baffling to me as I feel totally the opposite, clinically. The allergist thought I might have an auto-immune problem, causing the hives, but said the lab tests were negative for that.
I am trying a different form of levothyroxine (gluten free) and taking it at night, to prevent fewer issues with other medications that I take. I am also trying a different form of iron (dessicated liver) for better absorption. I am due to have my labs repeated next month, but I would like some guidance as to the possible causes for my varying thyroid levels and TPO. If anyone could assist I would appreciate it.