Fractured Ribs, Severe Bruises, Taking Treatment, Have Tremors, Increased Sensitivity To Light, Headache. Cause?

Hi. On Sunday i went to see a band play, there was some kind of incident (I don t remember events before or after) and a number if the crowd were pulled over, including me. I must have fallen backwards as I knocked myself out, split my head open and then people landed or trod on me as I have fractured 2 ribs and have a number of bruises. I was taken to hospital & had head stitched and cat scan but although I m now ok, stitches healing nicely etc I feel really strange. I m shaky, day light hurts my eyes, I feel sick & I feel like my head is in a bucket of treacle; everything seems to be going slower, I can really describe it. What s wrong with me? What can I do?