Knot on forehead from ball bat 3 yr old, hit forehead with ball bat, swole up, don't think it was hard enough to damage skull

Hello. : Hello. Would monitor him and get him evaluated if has any signs of concussion. Symptoms of a concussion can include: headache, nausea, vomiting, confusion, blurred vision, slurred speech, weakness, feeling dazed, numbness, lack of coordination, problems with short term memory, dizziness as well as repeating things over and over. You can develop a concussion with or without loss of consciousness.