I have about 20dB loss around 2000-3500Hz in left ear only.
But my tinnitus is unilateral and about 12,000Hz. Though sometimes it sound like it's more left-sided.
I have a separate tone at 3000Hz but it's super quiet and I rarely even hear it. Even the slightest sound masks it so I can only hear it in a quiet room with my left ear on a pillow, for example. Sometimes not then.
My high-frequency hearing hasn't been tested by a pro but I tested myself and I seem fine up through 12,000Hz at least.
So yeah, it's confusing to have 12k tinnitus for 3k hearing loss.