How long do they keep you feeling like total crud?? This is ridiculous. I got them on monday, 3 days ago. I still feel like you do when you're coming down with something major. I "get" that it's my body building up it's defenses.........but I didn't dream I'd feel this yukky/achey or for this long. Granted I got 2 at once, but geez. I've been pretty useless yesterday.....and all I did today was go pay some bills and I'm ready to go back to bed. Darn things better work wonderfully.