Constipation then diarrhea?

Hey friends. I haven’t had a good poop in a few days and this morning after breakfast, I got stomach cramps and went to the bathroom and passed a fairly large hard ish poop. Still felt stomach cramps but nothing more was coming out so I left and an hour later went back to the bathroom and had diarrhea. Is this normal? I still have slight stomach cramps so I’m worried I’ve caught something.