I have been taking amitriptyline for fibromyalgia. I have recently joined a gym and last night after I exercised my vision got really blurry. By the end of the night, my vision was so cloudy that everything looked like I was in dense fog. Has anyone else had this problem. My vision has cleared up overnight, but it was scary none the less. This is the second time this has happened. Any info would be helfpful. And yes I will be going to the doctor, but he is not in the office right now.