It sounds like you have the pain medication straightened out. I hope so.
As Barry said, everyone's different in their reactions to pain relievers. Of the more potent ones, I like Fentanyl, rather than morphine, and Tramadol for take-home. They're both addictive, of course, but don't seem to have the nausea problems as much as morphine or some of the others. I've never felt any withdrawal issues from them, myself.
However, some people have said they spaced out on them, too. Problem is, when you need them is not the time to have to go trying them all out.
Best wishes to you both for her continued improvement. Ross, please pray for me that I can get the ghastly vision of you in the French Maid's outfit out of my fragile, horrified mind before I go back to work Tuesday.
Only good news,