I have been a vegan for about a month, abstaining from meat, seafood, dairy, and honey. However, I'm beginning to feel tired, lightheaded, and "stupid" (i.e. i feel like i can't think nearly as snappy as i used to). My lips are also getting a little bit paler... Is this the result of a nutrition deficiency? If so, what nutrients are they, and what else can I do to get stronger? (I don't really want to give up my vegan beliefs)
Thanks
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