Your symtoms can be indicative of other disorders as well. One other thing to consider would be a blood sugar disorder or yeast syndrome. If you eat as much iron filled foods as you have stated and are taking your prenatal supplements, then you are probably fine with the iron. However it is worth checking into. You can get a CBC done to check your blood count thru your dr. In the meantime make sure you are sticking with low glycemic foods and eat on the same schedule that you would feed your child on....breakfast, snack, lunch, snack, dinner, snack. Food is very important and I know for myself I feel the exact same when my blood sugar is out of whack. If you snack on pretzels or bagels, stop because they are horrible for your blood sugar. Stick with whole grains if you eat grains and in all honesty the Bradley method diet should do you good. I saw that you were a firm believer. I had 2 of my kids that way and having experienced it myself I cannot understand why other women go on a rant saying they don't know why you would want to focus on pain rather than the baby...It is ALL about the baby and how you can sense so much more about the baby during the process when you keep your head on thru that pain. Did you feel pain in your labor? With one of mine I didn't until I was 8cm and started to panic and that didn't happen until 15 minuted before he was born.
Sorry for the tangent.
Definitly get your iron level checked and see if a diet change would help you too. Congrats on your baby, Good luck trying for #2 and finding the root problem to your symptoms and God Bless!