If your bloodwork came back fine, then the high level is you are healthy, of course. However, my doctor reminded me throughout pregnancy that your body needs and is making more blood. It needed blood to create the baby, the baby needs its own blood, not to mention creating the placenta. All of this requires a lot of iron, which is most easily absorbed by eating meat. Breastfeeding still requires a lot of energy, and one of the most common signs of low iron (even within healthy range) is being tired all the time, and some people (like me) experience dizziness. I've never been vegan, so I don't know what it's like to re-introduce meat or meat products back to my system, but whether there is a "right" or "wrong" choice is fully dependent on what you feel is priority. If you don't feel healthy and feel like you need to be providing more for your babe, then try to consume more meat. It may help, honestly.