HEY well my right side is hurting badly it feels in a knot what is causeing it I need help?

You need to tell your mom. It might be nothing, or it could be something serious. We are not allowed to diagnose and treat over the internet.

But what could it be before I tell her cause she is going to tell me to take ibprofen

Honey, I can't tell you what it could be. If I give you the wrong information it could be dangerous. If this continues you will need to see a doctor.

Either tell your Mom or visit the doctor, that's the only way to find out.