This is my fourth day on fluoxetine. I've been on it before (years ago) and had no side affects (that I can remember, anyway).
However, this time around I seem to be going in and out of hyper moods and agitation. I hate this feeling. Right now, I feel kind of down, like I want to start crying. My heart rate is up. I'm tired but I also just kind of want to have a big tantrum.
I dyed my hair earlier (I spent months thinking about doing it) and thought I'd be super happy about it because I couldn't stand how my hair looked before; now I'm annoyed at myself for being impulsive and doing something so drastic. I feel a deep sense of regret. More than regret. Despair. Not just over the hair dye, of course. I don't know. I feel very odd. Very low.
I was quite wired yesterday. Was jittery and hyper. In a great mood. It made me feel a bit uncomfortable though. It's quite draining to feel like that. Today my mood was much more stable. But this evening, I feel awful about myself. I ate two muffins and didn't go running. I did however walk to AND from work (50 minutes each way), and I've been awake since 4.30am. (It's 10pm as I'm posting this.)

Is the fluoxetine doing this?