When I was put on clopidogrel I was fine for a few days. I then had heart racing. Then lost my appetite and was extremely tired all the time. Then started having extreme anxiety. My cardio and pharmacist insisted it was not the drug and to hang in there. They suggested I see a psychologist. I lost 10 lbs in 2 weeks. I could not eat. They said hang in there. Your side effects are not from the clopidrogrel. This went on for a month and I believed them as I would have some not so bad days. Then one evening the palms of my hands started to get itchy, then I started having chest pain. We called an ambulance. By the time i was in ER I had a stomach rash and vomited. To make a long story short and a whole lot of tests later they decided it was the medication and I was switched to Berlinta. My life got back to normal and I have 6 weeks left and I can go off the Berlinta as it will be a year since the stents were placed. Moral of the story, you know your body, trust your gut.