Hi @girastancil, I'm glad to hear you found a little relief using a hot bed or taking an inflammatory med. There is another discussion on alternatives to prednisone that you might want to read through.
-- PMR: Are there treatment alternatives to Prednisone?:
https://connect.mayoclinic.org/discussion/alternatives-to-prednisone/
I have not heard of TIMMs electrical stimulation. I'm not sure electrical stimulation would help inflammation but I've never tried it when my PMR was active. Do you mean a TENS device?