Hello. Welcome to hcm
As you had a history of trauma,it is most likely a blunt trauma
to skull and nerves that is causing you pain but cannot be confirmed unless examined. Also, repeated shooting pain can be a subdural or extra dural hemorrhage.
I advice you to visit ER and have a CT scan
done if the pain does not get relieved in a day or two. If no problem is found,then physiotherapy
and pain killers may suffice. Neglecting a hemorrhage is dangerous as it can serious complications and later management difficult.
All the best