head or spinal injury

hi,

a few days ago my friend was accidentally hit at the temple of his head by a golf club in an accident. it sent him spinning around to the ground. i should also mention that prior and after the incident, he had been consuming a fair amount of alcohol too.

he woke up the next day with severe headache and blurry vision, and checked himself into the hospital. they gave him some medications and his blurry visions are gone now.

what seems to be worrying is that he's been having random involuntary muscle twitching on one of his legs. its comes and goes every few minutes and as a result, he gets really worn out from all this. hes been given some meds to calm him down. the twitching continues but at a much reduced rate.

when he tried to stand up to walk around he complains that the twitching starts all over again. hes been in the hospital for 3 days now and they've taken numerous blood samples and x-ray and even a scan of his brain. everything turns out normal except for the x-ray as we are still waiting for its results. he complained that last yesterday, there were 3 incidents when he was just lying down in bed and felt a sudden sharp twitching on his back...his left shoulders went one way and his right leg went the other day and it scared the hell outta him.

we are totally lost on whats going on and worried as hell while waiting for  the doc to conclude on this. i'm 3000 km away from him and worried sick. can anyone please shed some light on this subject?

thanks heaps.
richard