in that time i have vomiting attachs that last 5 days and impactive bowel is it normal to have these side affects - my doctor cannot tell me - i heard that the patches fentanyl would help me and i am really trying to change over. i was started on the lowest Drogesic patch of 12 for 3 days and it is like going through withdrawal for 3 days - i then hve incressed the dose to 25. i cannot get out of bed - 2 weeks. i have chronic dejenarative disc in all verterbraes and muscles and suffer bed must of the time. Please help me.