Hi I just can't believe you posted this.I have not been on the forum for a few days,have been in the hospital for the last 3 days. I have been sob and have had a cough for over 2 wks,new symptoms for me. Wed. afternoon (doing nothing) I could not breath! I went to an Urgent Care close by,didn't want to go to the ER again. Guess what Urgent Care rushed me to the ER. They kept me in Cardiac step down. I could not have any salt or an IV,I said I needed the IV,they said no,that I could be retaining fluid( I was not.) After a cardiogram,echocardiogram,pulminary function test, a barium swallow test ,chest x rays, CT's,I am sure I am forgetting some,oh and a million blood tests, the only thing they knew for sure was that I had a very fast HR.and that my rbc was a little low. I did not see any docs that I knew,only hospitalists. So I am following up with my pcp and a new EP. Does anyone think this is POTS? This doc thinks it has something to do with my GERD???,wants me to have an endoscopy. Any Ideas on that? I 'm thinking my bladder muscles and my stomach muscles don't work right ,could this me something like that. The doc did say something about bronchial spasms. Please for give my ramblings,but I am writing what I am thinking. I am still wheezing and coughing,doc does not want me to use inhaler cause it causes my heart to race, anyway I am very confused!!!!! Thanks for listening and would love your opions and suggestions P