I started on Prozac 20 days ago on 5 mg and went up to 10 then 15 then 20 mg in approx 10 days. I had panic, agitation, sleeplessness and a feeling of being very drugged and high. On the lower doses in the beginning where I was vomiting and nausea. I then started to decrease the dose back to 15, now I'm on 10. I'm still experiencing a huge rush two hours after ingesting the tablet. I'm feeling weird and out if it. My thoughts are darker and unsettled.I am tempted to reduce down to 5mg. I'm taking 1 to 2 mg prescribed lorazapam a day to cope with the symptoms of anxiety and agitation. Can success be achieved on 5 mg?