Celexa and fo

I've taken Celexa on and off 3 times, 6-8 mo. ea. and each time I get a little nervious and shaky fo the first 4 hours or so then it's fine. I feel great after about a week. Depression/ dark periods are definiatly taken care of. Sex drive has not changed, perhaps only gotten better. Orgasm is definately more difficult to achieve, but I don't find it a problem...if anything, it's a plus. I alway can stop w/ no problem when I think things are in order.