Now a compression is, pressure on the brain, caused by fracture, bleed or blood clot  now if a person has been suffering from concussion and it's gone unnoticed, that bleed could be just carrying on and on and on and it could take up to four to five days before the compression shows itself  so perhaps a week later they're sitting down to breakfast saying ooh my head hurts, now the poor wife or husband, or whoever it is doesn't know about that knock on the head that they had previously, unless somebody's told them about it  mm, so your casualty now is going to have this headache and a beauty, they're going to be confused  their levels of consciousness it will deteriorate  face is very hot, dry  flushed  the pupils will become unequal and because of the pressure breathing becomes noisy  if you feel the pulse, it's going to be slow and strong  and you will get paralysis on the opposite side to the compression, what are, what are the signs and symptoms of?