Jack, I certainly hope you're feeling better.... I just got over a terrible cold a few days ago that a very generous co-worker gave to me (wasn't that sweet)... it's no fun! I'll send some good thoughts your way!
I saw something about that on an internet site a few weeks ago (vacuum site), it looked interesting. My cat is very laid back normally, but I wouldn't get within ten feet of him if I were chasing him down with that thing in my hands attached to a running vacuum.... this from a cat who enjoys having his nails clipped! He is just scared of vacuums, maybe he feels outnumbered. They are OK if they don't come to life, but once they roar, he's gone!
This must be more for dog owners, as I think they'd more readily "hold still" for it than cats.