Hi have started back on Citalopram after a few years of anxiety free(mostly) living. I was starting to obsess about health worries in particular bowel cancers and other such internal nasties. Have been taking my citalopram (20mg) last thing at night before bed and have been waking most nights feeling sick and bloated. Not sure if its the timing of the medication or bowel cancer-any advice before I head back to my gp for yet more tests?