Started shedding today. Should I stop?

What’s up boys. Im 24 and I started minoxidil around 3 weeks ago. I normally shed a little, but I have a full head of hair. My hair is about 4-5 inches long. No one from my family is bald, even my grandpa had a full head of hair. Today in the shower, I noticed that I a shedding way more than normal and now I’m scared. Should I stop minoxidil, or is this common? I have noticed it starting to work for my facial hair, but I value my scalp hair over a beard if I had to choose.