You know what would always happen to me when I did codeine syrup? I would feel good. Of course. Then I would smoke weed. Then like a bomb went off. I would get super super light headed and tunnel vision and I would lose my hearing for a few seconds. A strong ringing like a grenade went off in my face. I always felt like I was gonna pass out when it happened. It didn’t happen Everytime but it happened a few times