How do you tell your mom about the concern of your health?

Recently (2 days ago), I ate pork. The middle was pink but the outside was cooked. I have a feeling I have tapeworms. The day after eating the pork, I had pain in my stomach. It went away, then comes back again. I really do need to tell my mom, however, I’m scared to. Please tell me how to properly be brave and stand up to her. I’m so scared and please list any experiences because I need to know anyone who has and how it has been. I’m sorry if I seem like a loser, I’m so scared that I have tapeworms and scared to tell my mom.