I have been taking levothyroxine for the past 2 years and have had no relief from symptoms which include crushing fatigue, headaches, stomach issues, low body temp, swollen thyroid and many more despite the blood test results from my thyroid all coming back normal. I am desperate to try anything and heard that if the body has a problem converting t4 to t3 then this could help. I have asked the GP in the UK about this but she said she has never heard of it and T4 is the only medication she can prescribe me. I have heard of others successfully ordering their T3 online and just wondered if anyone who does this would be able to message me to let me know which sites are the most reliable to order from. I would be grateful for any advice on this. Thank you!