<s>[INST] In the past week my abdomen, from the sternum down to my belly button has become hard and swollen. I also have had in creased urgency of urination. I ve lost 60 lbs. over the last 6 months and exercise daily, consisting of a lot of walking, weights and some cardio. I occasionally will have a dull, aching pain in the sternum area. Concerned as to what this might be? [/INST] Hi, Welcome to Chat Doctor. The dull pain in the sternum area could be due to gastritis. And the abdominal hardness and weight loss could be due to your exercise. Another possibility is that of a cancer on the abdomen, that can present with all these features, but that will depend upon your age. If it is on the higher side (>45yrs) then chances are more. So, I would suggest that you get an ultrasound scan of your abdomen to help reach a diagnosis. If it comes normal, then its mostly gastritis, and for that you need to take antacids. </s>