So I noticed that when I laugh my heart will beat slow but hard for maybe 10 seconds. And today I was sat down watching something funny when I felt something different it felt like my heart was beating slow and hard which usually I'd be like whatever but then suddenly I would have 3 fast hard beats and then slow again and then after maybe 15 seconds the fast 3-4 hard beats I dunno if my heart is just doing that coz when I laugh I keep my breath in so maybe it's trying to catch up and all or if there's something wrong with it. I had tests done and everything was fine. I don't get breathless during that or dizzy or anything but it does set up my anxiety a bit. Maybe my heart always did that when I laughed but I never noticed coz now it seems like I'm aware of everything my body does and feels. I got pretty stressed this morning and got in a argument with my family badly and went to sleep anxious and angry and woke up angry too so maybe it's just the stress but I'm still worried slightly.