Should i worry or is this norm

So i was at sunday mass and out of no where i started getting really hot and began to sweat decided to step out and began to loose my vision everything just went black like i knew were i was going but couldnt focuse i felt like i had no air was really thirsty and my body felt so heavy after that i now get super hot and and im the only one thats hot oh and by the way im 14 weeks pregnant what do i do