It sounds like somthing I have experienced recently I couldnt get a breath kind of, I havent yet mentioned it but if happens again I will be, I put it down to everything being so squashed up inside now and tje babys not having much space! If it happens allot I would say to say it to your doctor, also if your worried they should be able to put your mind at ease!
i feel out of breath sometimes but not always when heart is skipping beats and also get really tired and dizzy not sure if it is all just pregnancy related?
Do you feel weak or dizzy when it happens?