I am 16 weeks pg, and ever since I was about 8 weeks or so, I have been feeling really out of breath after doing things like walking into the kitchen and the like, and my heart races. I am the first to admit I'm not the fittest person alive, but I have never ever suffered from this before.
I find it most problematic at work as I am a music teacher, which obviously involves a lot of singing. I can't even sing a line without getting out of breath. It drives me mad. Is it a normal thing to happen in pg? I get dizzy too, but I suspect that that's down to low bp.