sr20 problem

when I shift below 3k rpm…the car works fine

But when I shift in high rpm, it’s hard to put into gear and has some weird feeling on both clutch and gas pedal, and I heard some noise from the tranny<-- maybe engine not too sure…

I can feel some vibration from the clutch too when I depress it, feel like coming from the engine, not too sure it’s like sth spinning, and when I step on the gas with the clutch depressed, the vibration goes faster.
Anyone has any clue on this issue?

the shop I went fews days that ago said that the sound possibly came from the RELEASING BEARING of my tranny, and said it possibly start to fell apart and not working soon.

Thanks