This must be the winter for this problem! I was hospitalized in early January after the most awful "flu-like" illness I've ever had. About 2 weeks after I was finished with IVs and had tapered off 80 mg of prednisone, I got extremely tight again and my pulse rate was above 100 almost constantly. Walking from one room to another was a major aerobic activity. I was sure my heart was going to give out. Doctor couldn't find any major congestion, and suggested that maybe since this had been such a strange viral episode in the hospital, the problem was inflamation and we had come off the prednisone too soon. So, we started at 40 mg. and he said to stay on it at least a week, drop down to 30, and if I started feeling tight again to just go back up to 40. He said it might take 4-8 weeks for the inflamation to subside. He was right. It has taken a loooooong time, but it is working. I am now down to five mg., and plan to stop it this weekend.
I usually have terrible problems with anxiety every time I reduce the dosage. This time it hasn't been as bad. Maybe there's a virus this year that is causing more inflamation problems than congestion problems for CFers. Anyway, everyone take good care.