Here's a checklist for hyper.
http://www.thyroid-info.com/hyperchklst.htm
what are the main symptoms of having and overactive thyroid?...i dont lose weight because ive alway been skinny...I am tired alot but thats because i work nights and my sleep schedule is out of wack
It is possible. Have you any other symptoms that might be related to being hyper? You should go back and as a start, request that the doctor at least test for free T3 and free T4 (not total T3 and total T4), along with TSH. These tests will give you an idea of whether it is thyroid related and then you can proceed from there.