Have you suffered through medical gaslighting? If so how did you handle such thing?

Have you suffered through medical gaslighting?

Medical gaslighting- a conversation between patient and doctor where the doctor fails to listen to you. Essentially creating you to have imposter syndrome a condition to where you are made to believe it's all in your head and making things up. Have any of you suffered such thing when taking care of your health? If so how did you respond and take charge to be taken seriously. I know of some tips but curious of other options to address such thing.