TSH normal range, could weight loss still be hyperthryoid undiagnosed?

See my other posts under Gerd.  I have had stomach issues since Dec 2012.

At first they said I had gastritis, then after colon and erd test, they said I had IBS.

In the mean time, I have lost way too much weight, my diet has been so limited with the stomach issues.   However, after reading the symptoms of Hyperthryoid, I wonder even though my TSH was within normal limits, if one still could be having thyroid issues ?  I only had the had the typical test they run with a total CBC.

Has anyone else had this problem?   should I request further tests run to rule this out? 

Hi,
I just wanted to ask whether you have the results of the test (TSH) they ran to post here with reference range?

S

Have you considered trying gluten-free? Link with gluten and thyroid problems. I was diagnosed w/ hypothyroidism/Hashimoto's last summer, and was losing weight, not gaining. I also have had history of tummy issues, but significantly better now after going GF. From what I've read, yes, you can still have thyroid issues even when numbers don't seem to indicate a thyroid problem.