How long after a concussion is it normal to still be feeling nauseous and have difficulty with memory, balance etc. I got hit in the face with a softball 11 days ago and am still nauseous. Cannot stand on one leg with eyes closed, and have forgotten things like PIN numbers, passwords etc. is it too soon to expect these symptoms to be gone, or should I go back to the drs. I did also break my nose, which was realigned under local anaesthetic 6 days ago. No LOC. No actual vomiting.