32 year old male. So many of these stories sound identical to mine especially the one from @edornton. Like all of you I'll have this vibration in my upper left chest. Shaking, tremors, buzzing, whatever you want to call it. I had it only a few times last year maybe once a month when waking up. Rarely will I wake up in the middle of the nigh, one of the times was after a bad dream. As of just this year I'm having it almost every night when trying to fall asleep. I'm at the point where as I get sleepier I can feel it about to come on. Like "here it comes here it comes lets get this over with" and sure enough there it is. It only lasts about 10 seconds tops. While its happening I don't feel dizzy or lightheaded or anything like that. Once its over I feel like I could spring right up and start running down the street if I wanted too and be perfectly fine. In which I am very active taking a 4 mile walk a day. When I do wake up in the morning I'll go right downstairs and drink my daily energy drink which probably isn't a good idea but could have something to do with this. The only really bad side effect from it is the anxiety I get from it which goes on to last on and off throughout the day. Anxiety in general might be the cause of all of this I don't know. It really messed up my sleep schedule this year and I was afraid to go to bed and was going to sleep at 4am I was able to fix that pretty quick the other day and I'm going to bed at 1am now which is "normal for me". While the vibrations are happening I try to grab my chest and see whats going on. I feel my heart beating normally while the vibrations happen slightly upwards from where my hearts beating. I was usually too tired to comprehend whats going on exactly but I'm like 100% sure thats what it feels like. I was almost starting to think the vibrations were all in my head! But sometimes I will make a noise as they are happening as if I'm riding over a bunch of bumps in the car "ba ba ba ba ba ba ba ba ba" so I think theres gotta be something physical going on. I would also say the feeling might even radiate throughout my entire torso even down towards the liver on the complete opposite side of my upper left. A few weeks ago I went to the doctor. My EKG came up good as well as my blood tests. He ruled it out as my muscles acting up as he often did with my cardiac anxiety and hypochondria I've been dealing with since 2010 and went too for in 2015 and 2019 as well. I showed the doctor the rate at which the vibrations go with my finger and he said its impossible for the heart to even race that fast. Which made me feel better but I'm still pretty scared about all of this. Great doctor but he didn't act like it was anything too crazy. Haven't received any kind of follow up after the blood tests... I see a lot of people talking about covid which is kind of freaky now that I think about it. I got the pfizer vaccines in July 2021. I definitely had covid January 2022. I supposedly had it in December 2022 but it was just like a cold. 2023 was when these vibrations first started. My entire family had colds in December 2023 while I only had a minor one. Early 2024 when I started getting the vibrations almost every night now. I'm just rambling on. I should mention in November 2023 I was eating super healthy cutting sugar, bread, pop, candy etc. and walking alot and didn't have any vibrations. I'm doing the same thing this month but the vibrations haven't gone away. I sleep on my sides and snore alot I'm 6'1 230 pounds so definitely a bit over weight. I try to sleep sitting up but its so uncomfortable but I think I might have been able to successfully pull it off and actually didn't feel the vibrations... I just don't know what to think here. More than anything I want to know what body part or what organ is it exactly that we are feeling when this is happening? And why?