Hello and thank you for reading! I have had ME/CFS since 1989 and have been mostly a mild to moderate case, symptom-wise. Since last Summer, however, I have begun getting worse. Not sure why. Four days ago, I crashed to a low I haven't been to before and ended up in the hospital. My question relates to the symptoms I had while there in the hospital... I had a heart monitor the whole time - was having several PVCs a minute. Would have episodes of sudden, severe air hunger with any exertion - including sitting up in bed. During several of the episodes, the nursing staff were checking my vitals - BP, Pulse, O2 sats. None of which ever were changed more than slightly due to the sudden hyperventilation (except resp rate, of course). Couldn't stand for more than a minute. Would develop the heavy, deep breathing within moments of standing. When lying down, breathing would return to normal after a minute or two. Anybody experienced or heard of something like this? Thanks for any responses!!