Anti-depressants side effects are too much

Hi all,

I have IBS-D and was recently put on anti-depressants to help manage my anxiety about my condition. It can be quite hard to leave the house without panicking about a flare up.

I've been on citalopram for 5 days now. I'm well aware that the side effects for the first few weeks are pretty rough. But I honestly don't know how anyone lasts the first 2 weeks. (If you've made it that far, you're a hero!)

I have headaches, insomnia, loss of appetite, nausea, vomiting, diarrhea and stomach pain - as well as increased anxiety, and a pretty low morale caused by all of the above.

Is this normal, and am I just being weak willed? Or should I go back to my GP?

I'm trying to maintain a full time job during all this but it's proving difficult.