Hello,i knocked the side of my head on a the side of my window and it hurted a lot. i felt a little bit dizzy with a little feeling of fog but after about an hour, symptoms were gone and i was fine.is there any chance i got any permanent damage?

Unlikely any permanent damage, but you may have had a concussion.Symptoms include headache, confusion, lack of coordination, memory loss, nausea, vomiting, dizziness, ringing in the ears, sleepiness, and excessive fatigue. Approximately 80% of concussions resolve over 7-14 days, with an average of 10 days. People with concussions should not return to physical activity sooner than 1 wk after injury

Closed head injuries are common and frequent, and almost invariably of little or no consequence. Some of your symptoms may suggest a mild, Grade I concussion, but since you stabilized rapidly, appears to be little need for further evaluation, at this time. If symptoms progress or problems ensue, contact your physician.