Hello, I am new here. I have had hypothyroid issues for years. I am a registered dietitian - exercise regularly and eat well but can only lose weight by extreme calorie restriction. I have pretty much given up on weight loss and have to just work really hard to maintain my weight. Have issues with edema (have for years). I am always tired. I am moody. High anxiety and depression. The last year or so I started suffering from night sweats (I thought it was menopause). TSH, Free T3 and Free T4 have always been in normal range.
Four days ago I went to the doctor for a basic exam. She checked my thyroid and it felt fine. Saturday evening I noticed a lump on my neck. I thought it was the muscle at first. Sunday I checked again and the lump was about twice the size it was on Saturday. Monday I went to the doctor - lump even larger. Doctor said it feels like it is on my thyroid. She stated she felt nothing on Friday (and neither did I - I have a habit of rubbing my neck out of nervousness and didn't feel anything until Saturday.) The "growth" is on the left side of my thyroid, not my right. We have an u/s scheduled for next Monday (6 days away - because Thanksgiving is this week no place could get me in sooner.)
With that, she ran some thyroid tests. Again - TSH, Free T3 and T4 are in the normal range, but Thyroid Microsomal antibody was over 800 (normal range listed is <5.61), Thyroglobulin is 49.93 (normal range 1.5-50) and thyroglobulin antibody 25.8 (normal range <4).
Family hx of eight year old daughter with Graves' disease and grandmother with benign thyroid mass requiring thyroid removal.
I do know there really aren't going to be answers until after the u/s on Monday to see what this "lump" is on my thyroid - enlarged thyroid or mass/cyst, but I am just going crazy thinking I have this fast growing aggressive thyroid cancer.
Can you have autoimmune hypothyroidism with normal regular thyroid labs? Can "lump" on the once side of the thyroid be something benign? The labs make me think Hashimoto's thyroiditis, but the fast growing "lump" makes me worry about it being cancer. I swear neither I nor my doctor felt anything on Friday, but Saturday evening it was there and I swear it is getting bigger by the day (but I could be paranoid and just thinking it is getting bigger.) Would love any advice/ideas/stories from others who had something similar.