Strange things happening to my face?

For context, yesterday i was on a school trip for a band competition. The bus I was on had clarinets and saxophones. Some alto saxophone people were being obnoxiously loud and annoying, from fart noises to music on full blast. I had gotten really mad on the trip, ineffable amounts of anger due to them. My friend who was a seat across me had claimed to have seen my face a bit red and veins visible on my head. I have no idea if he's telling the truth or not, but had said when i was mad it happened. So now I'm thinking whenever i get mad, that happens Does it sound real or was my friend pulling a joke on me?