Hi, I can understand the distress that you are having with your current set of symptoms. The pain that you have mentioned seems to be due to peptic ulcer disease. It is quite possible that it got exacerbated by intake of antidepressants. However, generally the gastric symptoms of nausea and abdominal pain due to anti-depressants usually go off in a few days. In your case, an independent condition might be present. I would suggest that you take a proton pump inhibitor like rabeprazole before food twice a day. It will help in your abdominal pain. In case, it still persists, you should seek a gastroenterology consultation for evaluation of your condition. You should also reconsider the decision regarding anti-depressants. If treatment for depression is not initiated, it will only go worse. As I have mentioned, initial nausea due to anti-depressants goes off within few days. Most of the newer anti-depressants like escitalopram, sertraline are quite safe. An it is not necessary that if you had some symptom with one of them, you will have it with other anti-depressant too. You headaches will also start decreasing once the anti-depressants start showing its effect. Hope the information was helpful. Best wishes.