hi and welcome. yes, i used to feel a sort of straining in my brain behind my left eye in particular, when i was having trouble processing spatial info while moving. ie driving. it was hard. i found out i was zinc deficient. fixed that, problem solved. not sure if you're in the same boat. only other crawling sensations i had were related to c-spine lesions (lhermitte's sign).
READ ME key info on nutrient targets - www.thisisms.com/ftopict-2489.html
my approach: no meds so far - just nutrient-dense anti-inflammatory whole foods, and supplements where needed
info: www.whfoods.com, www.nutritiondata.com