Littlebear - you're not alone, I still feel like I've got a hangover every morning. Not the real violent hangover of a big bender, but bad taste in my mouth, dull headache and neck ache and feeling very lethargic. It eases as the day goes on so I'm doing my best to pay it no mind and like you I'm taking vitamins and exercising. Not much help I know but at least you're misery has some company
and I've heard it loves that.