Hi Lut, sounds like Snoopy may indeed have a hearing disability. It really shouldn't affect her in the least. Being as young as she is, it's entirely possible she's had this since birth. And, if you're born that way, you can't miss what you never had. I know, I'm speaking from experience. So I'm sure Snoopy will get along just fine in life regardless of any disabilities she may have. She's still a lovebug !!