hello, something very odd has been happening to me for a few months. I wake up fine, always tired but I m hypo thyroid and in menopause - however I take meds for both. anyway, I m fine until after my shower, all of a sudden like clockwork, I get very tired, winded and excessive sweating. as I am also a nutritionist of course I thought sugar levels but it happens with or without food in the am. it lasts for about 20 minutes...usually until I hit my desk at work and then as I m getting busy, it all goes away. its very, very odd and frankly very annoying.