No wonder you have been so tired.
Just a hint, take your iron supplement with some sort of vitamin C. It will help the iron "bind" to blood cells.
I don't take B12 supplements so I have no suggestion there as to whether or not it will upset your digestive system. I used to take it years ago and never had trouble, but that was before all my digestive issues started.
Spinach is a great superfood! I love it. Since I can no longer eat lettuce, spinach has been a good replacement. I also eat at for dinner, at breakfast in my eggs, or in sandwiches.
Fortified cereals have both iron and B12 as well as other vitamins and minerals in them. Check the labels on them when you go to the store.
Eggs are a good source of both as well. Combine them with spinach and you're doing great.
Hang in there and let us know how you are doing.
