Re: fentanyl question
It's hard to say exactly what's going on, but you have to remember that fentanyl is very potent and a very strong narcotic....That's why it was working so well. In conjunction with that, comes some level of sedation....One has to be careful with ANY narcotic...Lortab, Percs, & etc. It can happen with any drug.
I think what's probably happening to you is what happens to most when they drive (in general), you get tired because you have to focus and concentrate so hard. I have the same problem. I think you have to find the right dosage for you that controls the pain, and then deal with the side effects. You may just need to really watch how and when you drive, or have someone drive you. It's also important to note that your body will adjust to these side effects....You just have to give it some time.
Hope things work out for you.