^I fucking like you. I don't know quite why, but I know it has something to do with your refined med regimen (as is mine, though not so much) and long, informed responses. That said, I smoked about fifteen cigs a day for a month and a half and I was lucky that the really tough dependence hadn't set in when I finally decided to wisen up and quit, cold turkey; please at least switch to nicotine. You won't regret this, I can 100% guarantee that.
I would recommend, if you're dead-set on using nicotine, whether for recreation or pleasure, starting with the 2mg gum. The patch isn't meant to provide any sort of buzz.
I was taking 50mg vyvanse (about 15-20mg dextroamphetamine) for several months with a day off per week, and for the last month or so no days off, then suddenly stopped; this is my second day off and I feel remarkably the same. But I know if I use opiates even once I won't feel alright for months. So I think mileage varies.
Curious: what side effects?