Ectopic beats. Attaching photos!

I took hcq400 one tablet for corona got palpitations and sweating for 5 minutes next day used to get sudden breathlessness for 5 seconds got scared and joined in hospital, corad 1 was my CT score. Got treated for 5 days and was discharged I was asymptomatic throughout. But ecg showed PACs. Been 8 months now Can any doctor tell me the difference between thuds and skipped beats, I'm only getting thuds while lying down around 1-2 per minute that too which disappear when a read a book loudly. In the period of 8 months I got a skipped beat sensation of around 10 times but not getting them anymore because I just ignored it. Please tell me the difference between a thud and a skipped beat seems confusing! Attaching photos