Hello there - i was diagnosed with underactive thyroid in April and started on 50mgc, then had a blood test in June which was still high (tsh 3.8). When i went up to 75 mgc, i got palpitations and felt really bad (the 25's were Goldshield) so the endocrinologist suggested that i go back to 50mgc, as by June my TSH was 1.2. This didn't work and it went back to 3.1, and i felt terrible, even though when diagnosed it was over 14! Since then i have tried to take 50 and half a 25, but again the Goldshield doesnt suit. Then i tried 50 and a quarter of a 50 for a few days, which was OK, but fiddly. Then today i tried 75 (of 50 and a half) but got palpitations again. My plan was to alternate between 50 and 75. Can any one advise about dosage? Had anyone tried liquid? Thanks - i am feeling like i'm really struggling and feel i will never get better. Does anyone have any advice also for the panic feelings? Thanks!