Itís so strange; this has largely affected my back too. Crawling downward happened first only every 3 weeks, then, everyday. I thought pinworms, but then it nearly crippled me for a few months. Itís incredibly strong and large/long.
I broke it up a lot on my back, with oils, medicine, sun. However, if I slack on diet and medicine, I feel it again in there. I again donít know if itís parasitic or fungal. Truly, back was the worst pain, along with eye intrusion. I considered a herniated disc, as I used to run. Itís not that. Itís in my tissues.