Are you eating healthy and exercising? That's key to weight loss, and feeling energized....especially if you have thyroid issues. I'm just asking because you didn't mention anything else about your lifestyle habbits, etc.
When you say your thyroid has been tested, what do you mean? Has your doctor tested free T3 and free T4 or just TSH?
Please post test results and reference ranges. Ranges vary lab to lab and have to come from yur own lab report.