I am brand new to this site, so forgive me...I'm not sure if this is the right area to pose my question.

Anyhow, I hit my head pretty hard about 6 nights ago. Two days after, I went to see my doctor. She opted not to run a CT scan based on the fact that I seemed fairly normal. Now, several days later, I am still dizzy off and on, and feel pressure (not like a headache, just like my brain expanding -- hopefully that makes sense to someone) in my head. If you were me, would you go to the ER or back to the doc to request a CT to be sure your skull wasn't fracture or that you weren't swelling or bleeding -- I am a constant worrier...

(side note, this is my second concussion. The first was much worse).

Thanks in advance