Racing heart, shortness if breath, and lightheaded...

Ch

I've been experiencing these for about 3 days. Called dr today and the racing heart is normal due to body pumping 30-50% more blood volume, but the shortness of breath and lightheaded stuff is a little concerning. So off to the dr I go in a few hours. My blood sugar dropped yesterday - forgot to mention that while I was on the phone. But I just don't feel good.

Anyone else?? I'm 20 wks 3 days.