Help me

Hey guys! So I'm working outside (it's really hot) and I get really dizzy, I can hardly see my vision is super blurred n I run to the bathroom n I'm having cold sweats n I feel like I have to throw up and poo. I use the bathroom and I'm bleeding lightly as if I'm on my period but my period ended yesterday. I had a little burrito and some water earlier and I've been drinking powerade. Please help. Is there something wrong? I'm not pregnant am I?