Posting for traffic. I’m hypothyroid, diagnosed in early 40s, now early 60s. Currently on 75mcg thyroxine. I’m convinced my dose is not the optimal one for me even though my GP says my levels are within the “normal range”. My weight is ballooning and I’m so tired all the time even though I sleep all night. I would like the full range of tests. T3 and T4. My question is do I need to go through my GP or can I contact an endocrinologist directly? Also has anyone done this and what was the upshot?