R.K.
I use epson salts all the time and never had a problem. I would try a bath in just warm/hot water or a bubble bath to see if yu have a reaction like that to just a bath.
Since you seem to have no repressed memory issues and counseling didn't help, it could be a past life memory. I would recommend trying counseling again. All counselors are different and if you don't mesh with someone the counseling just won't worrk.