@jpgnirvana0998 First, deep respect for putting yourself in harms way to come to the aid of Ukraine.
It seems that it's pretty common that patients struggle to get their doctors to treat concerns about palpitations seriously. But when it starts to interfere with the quality of your sleep, it should not be considered a trivial matter, My 2 cents is be persistent and press to be referred to a cardiologist (and/or electrophysiologist) for further investigation,

In the meantime you might try dialing back the intensity of your workouts. Obviously no two people are the same but in my case, pushing myself hard was sometimes associated with a spate of PVCs and/or PACs and backing off for a while helped.

Good luck!