Thanks to everyone for all your suggestions! I can't tell you how much I appreciate them. The back brace is what I was wondering about. Also having the machine tilted is something I haven't tried yet. The TENS unit looks like something I get at the Chiropractors office with electric stim. I will follow up on all of them and yes I've thought about yoga...sadly thinking about it is all I've done.
I will definitely try all the exercise suggestions. Thanks to all!