Incident

Was grocery shopping when I started to feel nauseous at the checkout. My vision began to go blurry and my hearing was completely muffled. Tried to walk with s/o to the car but ended up having to quickly sit down on the floor before I fainted. Went to er and I guess my blood pressure just rapidly dropped. Feeling fine now but wow that wasn’t fun. Felt embarrassed having to sit on the store floor in front of all those people. I’m 31 weeks. Anyone else have this issue?