I started having a pain above my left ear in my head that will go up to the top of my head. It just lasts a sec then it's gone and it only happened maybe once a day or once every few days. Last night it happened more often but it still didn't last for more than a second or two. I was able to go to sleep and slept really good so it did not keep me awake last night. This morning I pretty much feel fine but I think I am thinking about it all the time. What should I do?