Originally Posted by wawoof
Not sure if this is applicable to your situation, but my OB told me that if the baby is laying on the right-side artery, this can lead to shortness of breath in the mother. He said this is adaptive, because if blood flow to the baby is compromised by the mother's sleeping position, the shortness of breath will cause the mother to wake up and change position (he was trying to reassure me because I was worried about flopping over on my back in my sleep, and he reassured me that I wouldn't stay in a position that was hurting the baby). However, if you weren't on your back or right side, I'm not sure this would be a plausible explanation for what you were experiencing.
You know, I've read that as well, which is the reason I don't worry about ending up on my back many nights. It makes a lot of sense. I've experienced this, and it is very similar to the sudden feeling of sufficating I'm having here.
However, lying on my right side is worst, lying on my back is next worst and lying on my left side is better, but still a problem. After an hour or so of trying different positions, nearly falling asleep, sitting up gasping for breath, then lying back down again, it suddenly stops and I sleep for the rest of the night alright. When I get up in the middle of the night to pee, I don't have to go through it again. Oddly, it's not a problem when I'm lying down reading, and it only starts after I turn off the light and start to fall asleep (don't shoot me: that normally takes me 2-3 minutes).
A little experiment on myself:
It has nothing to do with my activity level. This has happened three times in a row and I only ran on the first day.
It has nothing to do with hydration level.
It has nothing to do with whether or not the a/c is on.
It has nothing to do with being stuffy -- that's been gone the last two days.
It is always associated with a *very* active baby whose motions I'd describe as "frantic" during this time.
Panthira ~ Asthma is an interesting suggestion. I've read about what asthma feels like and this isn't it. As soon as I sit up and take a deep breath the sensation is gone. I also don't have any allergies to speak of, and I'm not having problems any other time. I wonder if this could be related?
Only 12 more weeks of this, eh?