Janet,
Boy do I understand where you are.....
Here is what I know about myself.....the OxyContin gave me a sense of well being that went beyond pain control and left me sort of depressed when I stopped it. The oxycodone made no significant improvement in pain after about week 2 . Nerontin withdrawal is reported to cause nausea in some folks. When you are nauseous you don't eat ...which can cause ketosis ...that can cause more nausea. Be sure to eat carbs and drink plenty of fluids or risk a miserable number of days of dehydration, dry heaves and possibly an ER visit. If you get to the point where you need IVs you will be glad there are places like ERs and people like ER nurses and doctors.
Guavascon liquid anti acid helped w/ nausea and loosened up my BMs. Zofran helped but not completely.
It took well over 10 days after I stopped the narcotics and the neurontin before I stopped throwing up. I now look back at what happened and understand that my brain's neurotransmitters were slammed and slammed hard by....anesthesia, stress, narcotics and adjunctive pain meds. I quit the narcotics and the neurontin cold...I didn't have any more discomfort with out the meds. This past 3 weeks have been a battle not with pain as with nausea, vomiting , sleeplessness and the blues.
I don't think anyone could ever convince me to use OxyContin ever again. Same for neurontin and oxycodone.
I have been doing ok pain wise w/ ibuprofen 400 mg. I have also found that the heat in my knees improves w/ 2 regular Tylenol. If I could glue the ice bags to my knees I would. I have played around w/ lasix to try to encourage more rapid fluid loss from my legs w/ minimal to no luck. It seems that my legs will stop swelling when they want to period. I think my little exercise bike might be helping some.
Josephine rightly cautions not to stop pain meds cold turkey. For me that was the only way I was able to undo the mess I made of my brain from OR and narcotics.
I have lost 25 lbs post op due to this issue. I learned to recognize an odor of plastic coming from myself as me spilling ketones. When I detect that odor I try really hard to drink more and eat some carbs...bannanas and yogert seem to stay down best.
Also if you do start feeling better take it easy for a little while longer (3-4 days) No alchohol! I absolutely was craving a margarita several days ago. I had a med lime margarita on the rocks w/ a meal of shrimp fahitas. OMG Montezuma's ghost almost killed Mel that night!
This too shall pass, I hope you recover your tummy ASAP.
Chris