A stumper for ya guys

Anyone feel out of breath just walking around? A little background I was born anemic I used to get shots but the doc now has me on 65 mg twice a day along with my prenatal in iron. My bp today 107/70 with a pulse of 103 yep 103!! Anyway I get up to just walk around around the house and I'm out of breath. I'm getting a little concerned about my oxygen carrying capacity and whatnot wondering if any of you ladies are feeling the same way...