This last week I've started getting crippling headaches on the left side of my head, Sort of like a migrane. I think I know what causes it and I think its my laptop. The strange thing is I've had my laptop for about 18 months and these headaches have only just started. Strangely its when I'm opening up folders etc that they start. Nothing happens if I'm watching a movie or anything. So I wonder what has happened to me or my computer to all of a sudden start these mad headaches?