Doctors appointment delayed...

Because I have some mild skeletal symptoms of Marfan syndrome, my doctor recommends I go to a cardiologist once every year/2 years just to be on the safe side. I am an 18 year old male and thank god they found nothing wrong every time I went. The last time I went was exactly 1 year ago. My checkup was supposed to be this week but due to the lockdown, the appointment is set for another later date.
This is causing me to worry more because what if I wait too long, can something just magically turn worse? My palpitations went away for like 10 months but they have been coming back a lot the past 2 weeks.

Anyone?
Thanks,
Matt