Daisy,
Sorry to hear you are a c.p. sufferer too. If at all possible, do yourself a favor and find a pain management doc to follow (prescribe) your meds. It is a hassle to find the right one, but it is worth your time to do so. The O.P.'s days are numbered, no doubt about it. I have been in the same boat as you are now, and believe me, when you find a doc, the amount of time and energy that you now expend hunting meds, chasing meds, worrying about meds, etc. will be a thing of the past! Just my .02.
John