I have been vegan for a week now and currently eat rice, raw vegetables (occasionally steamed), both raw and dried fruits, nuts, beans, whole grain bread, potatoes, nut butter, almond milk, and soy in my daily diet however by 3 pm every day I experience extreme exhaustion. I get 8 hours of sleep every day, drink lots of water, and exercise a few times a week. I'm not really sure what's going on or how to fix my exhaustion. I would be really grateful to hear input from anyone who has a suggestion. Thank you in advance!