I think i have a concussion but my mom won't take me to the doctor. what do i do?

Go yourself: If you really feel you have concussive symptoms explain that to your mother and convince her you would like to see a dr. At 22yo, you can always go yourself if need be. Best wishes.

Depends: The effects of concussions can vary and be unpredictable. It depends on the severity of the injury. The symptoms can include headache, dizziness, vision change (blurred vision/ double vision), nausea/vomiting. If your symptoms or headache are severe, or if you have a loss of consciousness, you should get evaluated immediately.