Hi, I started having head pain when I woke up from bed. The pain was in the top of my head, no where wlse. On throughout the day it would hurt when I stood up or if I caoughed, yelled etc. Has anyone else experienced this, if so what could it be caused from? I, a huge worrier and have searched for brain tumors and really cant find anything out, except that you wake up with headaches. Can someone please help

Thank you
Kelley