"i took fluoxetine for chronic depression and anxiety. at 10mg, just had a little dry mouth. at 20mg, it began to work amazingly on my mood. i had experienced a major emotional, life-changing event just a few days prior, but after taking 20mg for a few days, i felt great. i didn&#039;t realize how wonderful i could feel after 5  years of recurring depression and anxiety. eventually, the side effects just got to be too much though. the most obvious one was the awful insomnia. i woke up in the middle of the night and could not get back to sleep every single night within a week of upping the dose. it affected me so much i had to take a sleep medicine. after a few weeks, i started to have vivid dreams and had trouble differentiating them from reality."