I've just come to the end of successful treatment for breast cancer. I've mentally crashed in last 6 weeks during which time I'm increasingly struggling to eat and sleep and have lost half a stone. I started citalopram yesterday - 10mg. I'm desperate to recover my appetite - I'm frightened by the weight loss and it's becoming a vicious cycle. I guess it could get worse before it gets better while the citalopram kicks in. Any tips?