Hi, My grand mother is yrs old.She was diagnosed with high level of TSH. The.The family physician has prescribed Thryonorm 50 mcg on a daily basis.However,ever since she has started taking the tablets,she is facing palpitation and increased heart rates.Whenever,she thinks that no one will be there along with her in the house,her heart rate increases and she feels restless.Kindly advice whether it is normal and that this side effect will gradually phase out as her body gets used to the medicine...