Question: Today the upper part of my chest tightened really quickly, almost like constricting, I had to stretch my sternum to alleviate the tighteness. It lasted about 1-2 seconds and than it was gone. No pain, no shortness of breath..just the constriction. Please note the following; This occured while I was lifting and putting away boxes at work; I had my annual physical yesterday and although my blood hasnt come back yet everything else was perfect (EKG, Lungs, vitals, etc...); I am on 5 mg of lisinopril for about two years now because slightly elevated BP; I am also on 40mg of prevacid because of acid; I am under a lot of stress; The doc yesterday also adjusted my my back and neck after the physical; The tightness did not feel XXXXXXX but rather on the bbone area in the center of my chest but more up towards my throat then my abdomen. Now that area is sore to the touch, but again the tenderness is not felt under the chest wall but rather directly on the bone itself where the tightness occured. I am a 39yo ex-smoker. I forgot to mention that I was off my prevacid for about 6-7 days, I just started to take it agian this morning becuase I was feeling the heartburn comin on yesterday and last night so I drank mylanta last night.