So, I was at my kids' school carnival today and it was pretty hot, although there was a cool breeze. But, there wasn't much shade. I was standing and walking for a while and suddenly started feeling nauseous so I found a little shade and sat down. That's when I started losing my peripheral vision and got the hot feeling all in my head (like a head rush). I almost threw up but stopped myself, thankfully because I didn't want that to happen in public. I've had this problem in the past (not sure what causes it) but what was weird this time is that I actually started to lose my hearing, too. That has never happened before. I think it was a mixture of the standing in the heat and probably not having enough to eat or drink beforehand. At least I hope that's all that caused it. There were plenty of other pregnant women around and they seemed just fine. It was pretty scary. I'm feeling a little better but my peripheral vision is still blurred. Should I call the doctor or just chalk it up to being dehydrated in the heat?