Gp started me on 20mgs Prozac on Monday for anxiety and I have been feeling pretty grotty since. I feel nauseous, dizzy, agitated and quite anxious, I also can't sleep (am awake since 1.30am). I don't have those symptoms all the time, more on and off but especially during the night. Tonight is particularly bad and I am wondering is it because I took the tablet at 7pm instead of earlier in the day (I was trying to see would it help with insomnia, it didn't). I know it can take some time to get used to taking meds like this, does my experience sound usual for starting on Prozac and how long does it normally take to settle down? Reassure me please :)