Surprised no one's mentioned this yet, but you could be dehydrating yourself in the morning, with drinking that much coffee (it's a diuretic), and then you're d

Surprised no one's mentioned this yet, but you could be dehydrating yourself in the morning, with drinking that much coffee (it's a diuretic), and then you're dehydrated during the afternoon, which can make you feel tired. Try drinking an extra large glass of water in the afternoon and you might start perking up again. It seems to work for me at least, when I remember to do it. I'm better about it now more than I used to. See: https://www.eatingwell.com/article/8045761/dehydration-and-fatigue/ https://www.eatingwell.com/article/8045761/dehydration-and-f...