[Rivière]

Your parents may be hiding the report from you as to not worry you. They don't want their child worrying about health problems when they're so young. You finding out the way you did must have been very difficult for you. I don't blame you for the way you feel.

Whether or not you choose to speak with your parents about your discovery is entirely your choice. If the report is fairly new, they may be trying to come to terms with the situation themselves before they try to talk to you about it. They may not even know how to yet.

You could approach them and be upset with them, or you could let them find the time to talk to you about it when they're ready to do so. However, I would like to point out that you talking to them about what you've found may be a huge weight off their shoulders. Sure you may cry and be very upset, but they may already find it hard trying to think of how to approach you with such bad news. Making them aware you know, isn't always a bad thing.

If you don't want to approach him just yet, you could consider speaking to a doctor and discussing your discovery with them. See if you can ask them for more information on the subject and see if there's any way you could make your father's life more comfortable, and help support him.