I too get blisters in my mouth that come and go. I still have tingling in my feet. My skin crawls, it’s very unnerving. It always feels like something is crawling on my body, this includes my scalp. I get ringing in my ears. I have lots of dizzy spells, and chest pain. And I’ve had a low-grade fever for months now. And now my fingertips turn white when I get cold.