Don't hesitate to talk to them about it. Ask them if you can play McDonald's Drive Thru with them. They will definitely be curious. Here's how it goes:
Dad/Mom: Welcome to (insert your family's name) Drive Thru. May I help you?
You: Yes, I'd like to talk to you about yesterday when...
Dad/Mom: You'd like to talk to us about what happened yesterday that made you upset? (They must repeat what they heard you say in the above statement. If you are satisfied that they understand what you want to talk about then you should continue.)
You: Yesterday, when ________ happened, what you said/did made me feel angry because...
Dad/Mom: They must repeat what they heard you say and then ask, Would there be anything else?"
You: It's up to you at this time if you have said all you want to say.
Then trade places and have them "drive thru" repeating their feelings. This is a safe way to express how you feel without things getting out of hand. You don't have to follow this rigidly, but it is a good start. If you will notice that they heard you say is in bold twice. This is because sometimes what you say, what you mean or what they heard gets lost in the transition. Your parents really want to know how you feel and they can do a better job if you go about it in the right way. Good luck! Drop me a comment if this helps you. I'd love to hear from you!