HELP!! Is it normal to feel nauseous and dizzy at 27 weeks

I’m so worried because I’ve been nauseous and dizzy since 4am. When I lay down, I feel dizzy and light headed, I get that uneasy feeling like I’m about to faint. I feel abit better after laying down but I just wanted to know from you mommas, does this happen and is it normal? My last pregnancy had complications. I called my obgyn office and they said they’d call me back but I called back and the office is closed due to protests. The feeling is like I’ve been sleeping on my back for long only that I haven’t. I can feel baby kick. Any tips?

Thanks for your support!