What's wrong with my car?

Ever since I bought my 99 gxe sentra the clutch pedal always felt like it had a spring under it. It was so strong it would push your foot back off the pedal. That never really was a problem I just used more strength to hold it down. Now there seems to be some sort of rattling going on. My guess would be the throwout bearing. anyone have any ideas?

yeah,that might be it,they said that was the problem on mine with that noise, but i dunno about the clutch pedal...go to nissanforums.com and there ask my people,they help me in everything...