I felt exactly the same. Was a bit sceptical at first, but after reading these threads, am going to give it another go. I've only been on it for 3 days now and I've experienced a fewf negative side effects, but I think I'll give it a go a bit longer (the side effect isn't anything you can't handle).. I did some research on how Celexa works, and apparently it restores the serotonin to normal levels in the brain. This will take some time.
Give it a go...