I was just hospitalized for two days for headaches, lower next pain/stiffness, and also some other symptoms. They treated me with depivan or something infused to my IV, they also did the same with a something that start with an R it was a pain killer I cant really remember the name of it, lastly they would give me 2 gabapentin capsules twice a day, now I m about to start a long prednisone prescription. I just got hit in the head by mistake and it caused an ungodly unexpected amount of pain (9-10) on something pretty minimal, A few days ago I went into the ER for my headaches and the doctor there prescribed me 15 percocets, is it ok to take one of these percocets or will it throw everything off the neurologists and doctors did?