Hi, for the past month or so on the back of my head right side at the bottom i have felt a tingle sensation like it itches all the time and sometimes its an itch i cant seem scratch it like tickles kinda so it feels like a little lump like smaller that a pea but im not sure if that is just me freaking out and its suppose to be there, but sometimes i get a little pain down my neck it starts on the right side and goes to the left side but not bad it feels like a tension headache, no change in anything else i just always scratch back there now and feel a small lump and freaking out, i have no history of anything like this in my family. Thank you.