Need reassurance😩

I’m 26 weeks and couple days along but the past couple days I’ve been feeling some type of way. It’s a little hard to explain but I’ll try my best. My heart has been beating fast and I would kinda feel weak all in my arms and I would feel a bit hot too. I would get uncomfortable very quick and it seems impossible so find a right spot to down in. Also my little girl would sit way on my right side to where sometimes it feels like she’s trying to go towards my back. She’s never really on my left side and I mean never lol

I just need a little help/advice