Heart palpitations at night
Hello all, I’ve been experiencing heart palpitations every single night at right around the same time. Around 3-5am every night I wake up with these palpitations that feel like a hard thump or like 2 thumps in a row. The thump occurs about every 20-30 seconds and the episode lasts like 20-30 minutes. It seems to go away faster if I’m sitting up or standing as opposed to lying down. Please help! What could these be?