The Dr. finally tried Morphine Sulfate, at first did instant relief,after a few days, prescibed 12 hour time released ms contin with a couple instant relief in between. The first few days wasn't bad, but I've felt worse since: SO SO SO Sleepy, clammy, feel totally drained, etc. About the 3rd day, I had some really odd hearbeat issue, I was actually missing beats a few times a minute. It settled down after about a day 1/2. The other problem, I started Paxil on same day as I did medication switch. I don't know if it could be a problem, and I hate to give up on either of these. I'm at work, but it is so hard... I don't know what to do. Please does anyone have any information regarding the switch of medication?