@brigby. Thank you. I'm afraid I'm going to have to whine a little now. As I may have mentioned elsewhere I have other health issues, one of which is atrial fib. or in my case flutter. About 3 days ago, I went back into afib. which in itself is not too bad. Not long after the onset, as I sat down to do my nebulizing and bent down to pick something up, I pulled my back muscle. I have not been able to get an appointment with a physical therapist (not for weeks anyway) so I am just doing a lot of stretching, heat and ice. Not fun with either one problem but horrible with both at the same time! I do a lot of stretching and exercise everyday -- wondering if I did too much somehow and strained something. I am scheduled for a cardioversion tomorrow which will fix the afib (temporarily at least). Wish there was a similar fix for my back other than time. (sigh). Mary