I have been using/abusing phenibut for almost a year now at varying amounts from 600mg to 5g. It was amazing at first, unlike any drug I have ever taken. I started using kratom at large amounts of 10g to 30g for about 3-4 months. I started noticing slight tinnitus a few months ago. It's a very slight buzzing/ringing mostly noticeable at night when I'm lying down(ear pressed against pillow). In the last month I've had bouts of heavy drinking and this made the ringing worse a few days after before returning to baseline. It's really starting to worry me because I cant enjoy the quiet anymore. I have always stayed away from loud noises in the past, so it's not noise damage. Is it permanent? I have not stopped taking the phenibut. If I taper down to a certain amount(around 1g) it gets worse and my anxiety/depression goes through the roof. I'm trying figure out how to get off the phenibut at the moment. I'm worried because I've heard benzos can cause permanent damage(not sure if this is true or not). Any help would be much appreciated. I'm 25 years old. Can mild tinnitus due to ingesting these substances go away?