I was prescribed Tramadol 400mgm/day and Amytryptiline 20mgm at night for severe back pain. I took both for two weeks but had to stop because I had stomach pains, diarrheoa and hallucinations. I was very drowsy with no appetite and felt just awful. Now, ten days later I'm still hallucinating. It is so scary. Is this normal and if so how long could it continue? I still have back pain but am using a TENS machine and physio and starting yoga. I just want the spiders I see everywhere to go away.