After climbing the stairs or other exertion, I've started having a burning, painful sensation in the area of my chest and neck junction. It actually feels centered at my lower throat, immediately above the sternum. It feels like it's on fire. Also, my heart rate speeds up considerably. It subsides quickly with rest. I am post RNY (3 years). I also have cirrhosis (non-alcohol type), with an enlarged spleen and portal hypertension. I'd like to know what some of the possible symptoms could be. Or am I just needing to exercise more? I'm a 50 year old white female, still needing to lose 30 more pounds. Thank you for your time.