I SWEAR I THINK I FELT LICE CRAWLING IN MY HEAD?

I am extremely, extremely fearful of getting lice. I'm going to give you all of the details right here, right now. Dry skin and dandruff runs in my family, particularly my mothers side. I have dandruff as well, and occasionally, i also see dandruff on my brothers head. My dandruff is much, much better now, but my head still itches every once in a while. I don't usually worry about lice, but a couple of days ago, my head got itchy, and i immediately got paranoid and thought it was lice. I was so scared. So, 24/7, i am fearful about the possibility of lice in my hair. Does thinking about lice automatically make a person feel itchy? Because i am thinking about lice right now and even just thinking about those little tiny F***ers makes me feel itchy all over. I swear, i think i just felt something crawl in my hair. Is it lice? Or is there a possibility that it's my dandruff coming back with a vengeance? Or is it just my extreme paranoia?