Hi I have been changing from Cardevidiol to Metorprolol ER and it has destroyed my life. I have been slowly increasing from 25mg to 75 mg and although I suffer with anxiety I have never experienced these intense feelings of THIS weird anxiety! Crawling, burning skin, supper tired but cannot relax, cannot eat, I feel like a zombie......HELP! My doctor says it is not from the pill but I know it it is. But I am afraid if he changes it to something else the same thing will happen. But I cannot live like this!!!!!