Hello! Could you please tell us if our daughter is experiencing teething…

Hello! Could you please tell us if our daughter is experiencing teething pain for the past four months? She constantly pulls on her right ear, tugging and pulling. Maybe she's just holding it? I am very afraid of not understanding if her ears get sore. Has anyone experienced this before? Could it be related to teething? I read online that it can also be a sign of tooth eruption, but why only the right ear?