You need to get more iron in a way that doesn’t tax the tummy. That’s makes it tough because I was going to suggest tonnes of red meat. But I am sure you thought of that. There are Fe supplements....
I, luckily, am a carnivore! Red meat is my favorite food. (Well, chocolate comes in at a really close second. Or maybe red meat is second...?) My favorite meal is: red meat (steak!) salad, a slice of garlic bread and a glass of sweet red wine. If I could afford it, I would have that every day.
And yes, there ARE Fe supplements, but I don’t want to go there unless I have no other choice.