Maybe your original diet was better for you, find out if was just a broken meter. Can you run controls with it?

When I was anemic I was told the body doesn't absorb iron from plant sources as well as from animals. I took an iron supplement with vitamin C to help absorption and still make it a point to eat beef daily.

I don't think a diet of spinach and nuts agrees with you. Can you add stuff like yogurt and protein shakes? I'm sorry about the foot problem, I think checking back with the dr is a good idea.

Most of the biology textbooks are still using the flawed data from Ancel Keys and don't advise eating fat as they still think its the cause of heart disease.