I had a fall 4 days ago and hit the back of my head that did cause an abrasion and a fair amount of blood. Since then, I have had dizziness, nausea extremely tired ( I have been sleeping alot) I feel like I am going to fall when I walk. I do not have a primary care doctor so I would need to go to the ER. Not sure what I should do. Thank you
Hello, You are likely suffering from a set of POSTCONCUSSIVE symptoms that would be best be checked out at an URGENT CARE center or EMERGENCY ROOM.  These are common symptoms to feel after having suffered a strong blow to the back of the head, and it is very likely you have a concussion.  I highly recommend you seek medical attention right away as things could complicate. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor.