Will give them a ring I think. Got a feeling it might be a virus but not sure. I've been working 37+ hours a week over summer and before that was doing 30+ hours a week at college and 15+ hours a week at work and just had my first proper week off without going on holiday with the family and 4 brothers and sisters [not exactly a relaxing holiday!!] or still having to go to college since I started working where I do 23 months ago. It's probably my body finding it strange having all of this relaxation time and not actually doing anything and it's caught up with me