Check your ears.
1. Ask a doctor about hearing problems. Find hearing loss or changes? Make an appointment with a health care professional. They can check your ears to see if there is any obvious abnormality and ask some related questions, such as your medical history and lifestyle. Most problems affecting listening are harmless and reversible, so don't be afraid to seek professional advice.
2. Make an appointment with an otologist for a hearing test. An otologist (otolaryngologist) or audiologist can conduct a more comprehensive ear examination, including a hearing test, to test whether the hearing system function can transmit sound to the brain. The whole process is quite quick and painless, which is very important for judging whether the listening problem is permanent or not.