I have pain in throat when swallowing and a wierd sickness feeling just above my belly button. i suffer from anxiety could this be an ulcer?

Acid reflux : It sounds more like you might be experiencing acid reflux and as a result heartburn. This may make you feel sick and with a burning sensation which at times can be very uncomfortable or painful. Start eating a diet low in fats and irritant free, so avoid fried foods , sauces, caffeine, mint, tobacco, among others. Anti acids like Tums help as well as otc meds like zantac (ranitidine). If persist f/u with pcp.