Hi, been on Sertraline for about 6/7 weeks now- changed from Citalopram which I had been on for years & which wasn't working anymore. Started on 50mg Sertraline and then up to 100mg after a couple of weeks. Side effects became worse and have been constant for weeks now- nausea, can hardly eat, insomnia, headache, dizziness, confusion, feeling mentally numb and detached (felt this anyhow). All this doesn't seem to be easing at all and I need to 'function' properly as I have 2 young kids to care for. Losing weight which is not a good thing for me as I am underweight and very faint. Any advice ?