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General Car Related Discussion.To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.
Could be any number of things!! If its worrying then you should go to the doctors, they'll do blood tests for things like thyroid etc, even diabetes. either that or do what I do and eat a bag of fruity allsorts a day! loadsa energy!! (got an appointment with the dentist though, can't figure out why I have constant toothache!)
I get this all the time mate, probably cos I stay up late tho.......
When I do get to sleep at a good time for a couple of nights tho I usually feel pretty good, try some extra early nights, not with the Mrs either you need to sleep!