Thanks for all of the info. I suspect that I too have low iron. I have a very hard time recovering from my workouts, and I am tired and have a headache all day long.I do not eat meat, tons of veggies, but it may not be enough with the workout schedule that I have. I thought is was allergies, but this makes more sense. I have really avoided taking iron because of the stomach problems associated with the supplements, but now I am going to check for some of the more gentle types that I can take.

Thanks

Ruth