What blood testing has been done for you? What were the actual results, along with their ranges? What was the reason for the doctor putting you on synthroid 7 years ago? Sorry to respond to your questions with more questions, but we need more info, to give you a worthwhile response.
i had a total tyroidectomy,thats why i'm on synthroid and cytomel.
I had a total thyroidectomy 6 years ago and had gained 40 llbs since then. A year ago I started 12.5 cytomel. I never felt better in my life! I was on 125 levothyroxine and 12.5 cytomel to clarify. My doctor said I would not lose weight due to the cytomel. I don't know if it was the cyt or just me feeling better with no more fatigue that made me lose weight. I dropped 25lbs. Two months ago found out I was pregnant and was taken off the cytomel and my levothyroxine was raised to 150. I miscarried a week later. My thyroid levels got so messed up because of the all the hormonal changes. I now am getting closer normal levels but I feel horrible. Because we are trying for a baby I cannot be put back on the cytomel until I am pregnant again and give birth. Since I have been off the cytomel though I instantly gained almost 10 lbs already. I am back to my afternoon naps. I loved the cytomel and I do say yes it helped with me losing weight:)