Help with nutrition. 1 week new vegan.
Hey everyone I just started the vegan diet and I am already worried as today at work around 1:00pm after i just ate my brown rice / w lentils and my stir fry (cauliflower, cabbage, mushrooms, onions, eggplant). I started to feel light headed, then followed brain fogginess, instantly tired (like I could fall asleep at work).
Would having a hyperactive thyroid be very bad for me going vegan? I'm 153 lbs, haven't gained a pound since I was 16 no matter what i eat.
Sorry if I wasnt clear on everything, and thanks to anyone that gives me advice :)