I have multi nodular goiters. My blood levels have been border line so I have never taken meds. However, I am wondering if that has changed. I had surgery 7/9/13 I have lost 23 lbs. About 6 weeks ago it occurred to me that I have not been sweating like I used to. I used to sweat profusely. Also, I am eating about 900 cals., working out about 45 mins. and the scale has not moved since 9/5. Do you think I should have them retest? My last blood work was in April and they said I didn't need to check it for about 18 months.

I would get labs done sooner than 18 months. Are you seeing your PCP or an endocrinologist?
You may be in a stall.

I saw an endocrinologist in April. I had a scan done. Can the scan change things?