Could be...is this the first time you've experienced it during your pregnancy? I've had fainting spells on and off since the beginning of my pregnancy and it just happens randomly. I get too hot. The further along you get you'll be short of breath more since the baby is pushing against your diaphragm. Could all be normal symptoms but I'd let your doctor know just in case since you are anemic. Better safe than sorry😊

I'd say your best bet is to call L&D at least just let them know and they will figure if it is needing to be checked.. but it could be blood sugar, try a small piece of candy?:)