@bigmqama I agree you should see a specialist, but would want to know additional info. Were you told what type of tumor it was, maybe an acoustic neuroma (AN)? My wife woke up deaf in one ear 3 years ago and was diagnosed with an AN, but she acted quickly and steroids helped it relieve pressure on her hearing nerve and her hearing came back. Her AN tumor was small and the specialist told her they grow slowly. But we have to watch it to make sure it doesn't start pressing on the hearing nerve again or the brain stem. She went to an otolaryngologist at Jefferson in Philly. I would think you would need a current MRI if you haven't had one in awhile.