What Causes Imbalance And Weakness In Body After Accidentally Hitting The Head?

Ok, I feel and hit my head on some ice that I really cracked the ice. Now I didn t pass out or anything, just say stars for a few mins. Now, my question is I am having like trouble walking and weakness everywhere in my body. I walk like I am drunk and stumble all the time, when I get home at night I need to us a cane to walk and balance. My arms are very weak, I can t even put a plate in the cupboard. My body feels numb most of the time. So with hitting my head so long ago be causeing these problems now?