I had a hot tub bath with steamer on while I was in the tub for 20 minutes I was not feeling well, so I stood up and in a sec I was shaken up and about to fall. I took the help of walls and went straight to bed, it was complete out of control and first time in life. After 15 min. it was all set good. The problem started from there, I am having constant chest tightness, dizziness, and shortness of breath along with that lots of gas. It's been 1 year but the symptoms still there. I did cardiac check, x rays, blood tests, and all are good, still these symptoms are like that. I was checking BP regularly, and its above 120/80 all the time. If anyone has an advice please help.