Losing my ability to breathe... already

I knew at some point that this was going to happen... had been hoping it might be awhile before the breathlessness came in but these babies had other ideas. Last night I had several episodes where my chest was heavy and burning and no matter how much I tried it seemed like I wasnt getting enough oxygen. Not a great feeling believe me. And the funny thing is that I was having these while sitting or laying down. So I checked and no, my fingers or lips werent turning blue, my capillary refill was fine... heart rate was a little up but that could be related to the 'smothered fish feeling'

But they went away so I brushed them off. My chest still feels tired this morning and I'm SOB (short of breath) when I get up to do normal tasks around the house. These babies must be pushing up hard against my diaphragm. So don't worry about me, I'll keep an eye on it and the babies are moving a lot so they aren't too bothered by it. Everything I've read online says this happens but it's abnormal for me because I never had it with Abby. We went on a walk yesterday afternoon and it didnt bother me much then, and I tend to feel better when I'm standing up... so maybe it's my posture?

24 weeks today! yay!!!! Our twins are the size of the picture I posted on here. (Just imagine one of the baby's head up instead of down. Here is what is currently going on with them:

"How your baby's growing:
Your baby's growing steadily, having gained about 4 ounces since last week. That puts her at just over a pound. Since she's almost a foot long (picture an ear of corn), she cuts a pretty lean figure at this point, but her body is filling out proportionally and she'll soon start to plump up. Her brain is also growing quickly now, and her taste buds are continuing to develop. Her lungs are developing "branches" of the respiratory "tree" as well as cells that produce surfactant, a substance that will help her air sacs inflate once she hits the outside world. Her skin is still thin and translucent, but that will start to change soon."

Well it's time for me to get Abby down for a nap so that my Mom and I can head up to Sioux Falls today and pick out some paint for her new room... things are slowly coming together. No painting for me tho :(