I also fall into the "complicated patient" that my PCP just refers off to the other specialist. If you have a low thyroid (the TSH test is high) you would have Hashimotos (I have this as well) which can cause you to be tired and weak. Not to discourage you but it just took my doctors 30 years to find I have MG in addition to MS which was diagnosed 10 years ago.

Don't give up just get trying to find a doctor who will take your symptoms and run the proper tests.

Gabriella