Where am I?

Today I feel a little lost... I have a very bad headache, and despite having a good nights sleep I was awake for two hours before feeling like I needed a full nights sleep again; what is going on? I can't decide whether it is as a result of the medication or whether it is simply a symptom of recovery. I must say I'm not as active as I probably should be, but to be honest I can not bring myself to do anything. I'm off out to meet friends in a couple of hours, maybe that will pull me out of my funk.