hello,
I had an injury 2 weeks ago (was putting a heavy shelf on the shoulder, it leaned and hit my head left side 1,5 inches behind ear)
I just had light-headedness for 1 week. Still could do everything but tired by early evening. No sore spots on my head, no headaches, no pain.
2nd week - as if clogged left ear and some mild pain/pressure here and there, light-headness practically is gone.

I havent been to the doctors, I dont have an insurance.
I am wondering at which point i should start getting worried.
What would be signs to be concerned and infection?

Thanks
Mills