I am at the beginning of week 27 and I feel (and sound) asthmatic. It seems awfully early for me to be having so much trouble breathing, but what do I know? I'm a newbie.

The only way for me to really fill my lungs is to stand completely upright. Sitting up straight is the next easiest. With every degree of recline it gets harder. Needless to say, I'm sleeping badly.

There seem to be two problems - my nasal passages feel swollen shut and my lungs feel smashed flat.

Is this normal at the beginning of the third trimester? Or should I mention it to my midwife?