I woke up this morning, heart was pounding. My husband took my pulse, it was 110. I didn t feel like I could take in a deep breath, and area above navel felt hard (upper abdomen felt bloated). I felt like I needed to throw up. Dry heaved very hard at least 5 times. Was very weak but heart rate felt better and felt like I was able to breathe better. Tightness above navel felt better, abdomen still bloated. I do have a hernia in that area (was repaired but then failed a few months after--this was years ago). have esophagitis but didn t feel like esophagitis attack. I have several health conditions and on several medications. Had a similar episode last month, only felt more dizzy, hands tingled for about an hour later. Today I slept for about 10 hrs afterwards, so exhausted. Hands feel a bit tingly, upper body shaky. I am a zebra (when you hear hoofbeats....reference) with several autoimmune diseases and neurological diseases. Good luck ;)