Not sure whether I've got flu or not. Am on antibiotics for nasty sinus infection, which explains the pounding head/face, but for the last 3 days have felt absolutely exhausted. Thought I was going to pass out at work yesterday, light headed and weird. Wasn't at work today so have spent most of it under blanket on sofa, apart from school run and quick dog walk. I'd have said it was flu (lots around here) but haven't got a temperature tho feel hot and flushed. Back aches. Even bought new thermometer but says temp is fine. Trying to decide whether up for work tomorrow. No energy at all.