J Rgen F.
It is good to exercise every day so when you are running around you don’t get the pain on your side because you are used to exercising. When you go a long period of time without running around much, your body isn’t used to doing it which can make you have that bad feeling on your side.
Make sure to drink plenty of water while exercising as well and make sure to breathe while exercising (don’t hold your breath) especially in a mask. I dance too so I understand how inhibiting side stitch can be. Hope this helps!