My Name Is Jessica, I Have Hyperthyroidism And I Take

My name is jessica, i have hyperthyroidism and i take inderal and carbimazole, after one year taking all my medicine, im feel always depress and im worry about my illness...after that, i feel my head is saying that im gonna die, and im dizzy! My heart begin ,to palpitate faster and im shaking, im feel having cardiac arrest..i dnt know what to do?