My brother in law was in a really bad skate boarding accident 4 months ago. He fell several times off his skate board, well the last time he was knocked unconscious.He was rushed to a hospital,drs said it was unlikely he would even survive the night, he had brian surgery as soon as he arrived to relieve the swelling and was in a medicially induced coma. Now 4 months later, he has a lot of movement, he opens his eyes. It seams like he is trying to follow the vioce when someone speaks to him, but his tempature keeps spiking. His blood preasure gets dangerously low then later in the day it will get really high. We are afraid he may have a heart attack. Is all this normal? Part of the coma?