walmart bugs or trigger ?

Whatever this is on my scalp actually moves sometimes .I hadn't felt that odd deep down crawling feeling for a long time .Until two days ago while sitting in a chair getting my hair cut at walmart .This is the second time I have been symptom free and got full blown symptoms after being in walmart .What in the world is that all about ??? Are these damn things air borne in a public place ? Or is it the electromagnet fields in a big store like that ?
I put my hand on my scalp last night when I felt that odd sensation and I swear I felt my hair move or something move .Its a very odd feeling and it moves away from touch .
Has anyone else experienced this ? And especially in walmart ?
I also get really sick feeling in walmart and get hot flashes .I am also seeing the white things again ,ugggg.