I am having heart palpitations sometimes at night if I go to sleep very late like 4 am, when I am laying down I can feel my heart beating really high in my chest and below my throat(maybe a bit in my throat), is this normal? It feels quite strange and when I sit up it goes away almost immediately. It happened like 3 or 4 times, I think a few of those times I was almost alseep. I went to get a snack and then fell asleep right after. Can this be related to long term use of sodium ascorbate? I did do 30 minutes of cardio the same day. I am not sure if they are palpitations, I can just feel my heart suddenly and its like really high in my chest, in my lower throat, very late into the night when I havent slept like 4 am. Can long term use of sodium ascorbate cause heart palpitations at all? Ill note that behind my left elbow did have some pain when this happened, suddenly.
it says here that lack of sleep can cause them, what does that mean? https://www.healthline.com/health/heart ... ght#causes
Please help thanks, very concerned.