Started taking Coversyl 2mg. one month ago and started having frequent heart palpitations, especially at night. I am also on Apo-Hydro 12.5 mg, Synthroid 75 mcg. As a result of the palpitations my sleep is now extremely poor, so poor that the doctor put me on Apo-Trazodone 50mg. The latter prescription did not help with the sleep loss, only made me feel somewhat stoned. I have elevated cholesterol, maybe due to genetics or hypothyroidism , definitely not my diet.