The past few months I've had these symptoms on and off; Light headed and dizzy, nausea (quite a lot, hate feeling sick), abdominal cramps/pain - go through periods of being constipated and then can go regularly but pain still doesn't go, this contributes to the nausea as well, lack of energy, severe headache that comes and goes, ringing in both ears, quite a lot of trouble sleeping, and quite exhausted (which probably relates to trouble sleeping). This past week all these symptoms have stepped up a notch and just won't go away. I had the mother of all hangovers last Tuesday, 
which normally only last 24 hours, but almost a week later I still feel hungover? It's got to the point were I'm having to nap for about 3 hours during the day now, which obviously effects my sleeping during the night now. I also feel really down all the time, I don't think I'm depressed, but I suppose it could be?
I've thought it could be blood pressure related, but I've never had problems with my blood pressure before. I had a doctors appointment on Friday but just wondered if anyone could shed some light on it? Could it be stress related? DH was made redundant last month so money is a big source of worry atm. Although now he's at home he's doing most of the housework and childcare now because I just feel so awful all the time.
I can rule being pregnant out as DH has had the snip.