I’m freaking out

I’m currently 36.1 day pregnant the last few nights I have been getting heart palpitations, idk what to do, it’s very scary and now I haven’t been able to really sleep the passed few days ! Any home remedies that can help? I just saw my doctor at my routine checkup yesterday . It’s like every time I’m about to fall asleep it’s like my heart stops and my body jerks awake. ( almost like when it feels like your falling and suddenly wake up). I can’t stay alseep it’s very frustrating, I have my 3 kids with me and they are sleeping I don’t wanna go to the er unless I truly have to . I’m just really confused !!Yes I have anxiety but I haven’t had no problems this whole pregnancy , I’m not stressed and didn’t drink anything to cause this I am also hydrated so idk what’s going on . Obviously you ladies cant give me a diagnosis, just maybe looking for options until I can call my doctor in the morning. Thank you