Hi, been taking T3 only for the past 2 years prescribed by a consultant, 20 mcg x 3 daily as he said I wasn't converting T4 properly was prescribed 150 mcg before taking T3 only. Just been back to GP as I have put on weight, swollen hands, stiff joints, hair loss and my eyebrows missing at the sides. GP has given me an extra 20mcgs and said I may have to go back see the consultant as he is confused about my TSH and T4 results both being low. T 4 was 2, they didn't have the results of my T3, have to wait a week before my T3 results are back. I have been working long shifts and wondered if this would have an impact my thyroid levels?