Out of breath!

Anon
I know this may sound like a silly question but I'm only 19 weeks and feels so short of breath already. Whether it's eating, going for a walk or sleeping. I'm not overweight and I tend to eat pretty healthy but still so out of breath. Is this normal? If it is, does it only get worse from here on, especially during labor? I'm afraid that at 19 weeks if I'm struggling to catch my breath, it worries me that at 25 or so I won't be able to breath. I will be seeing my doctor in a week and will ask her also.