Need a little advice

I've been feeling oh so shirt these past few days. The first day started with when I stood up my head didn't feel right and my entire body ached. Like internally. Not like I worked out. And the second day I woke up with a headache and body aches everywhere and my head just felt off. The third day I was feeling a little better. But today I'm having some body aches and now my equilibrium is way off. For a short period of time I had a tiny sore throat. The entire time I've been getting super hot and then cold cold cold. Haven't had a fever. I've never felt like this. So I don't know if It could be a really bad cold or something to do with maybe being pregnant. I just don't know. And I don't drink either. My head kinda felt as if I was high if that helps. It's all so terrible.