2001 Alero revving too high

whistling sounds and the high rpms to a stall situation could be a loose /broken vacuum pipe possible to the transmission actuator ( automatic)
happening after a bump could be from broken engine mounts , loose ground points, harness connections loose loose battery terminals

possible clutch failure --sounds like clutch is slipping

Other than getting someone younger than 35 to drive the car, I have no solution.

Check your fuel pressure sounds like to me the fuel pump is weak or worn out.

the idle air control motor needs tested cleaned and maybe replaced is a place to start and a fuel filter would not hert ether

the car will stall and idle really rough and keep dieing and not want to start best way to check is under the hood on your fuel line rail theres a relief valve and see if the pressure is low or high

I have a 2001 Monte Carlo and at 44000 miles it acted like yours.My catalitic converter was cloged up.It was a bad batch of cats. and GM paid my bill after I had it replaced. I got a "High Flow" type.It works great. Im now at 177000 miles.
I hope this helps you.

if it has a 1.8 coils are bad but check mass air meter and throttle as well

You need to replace your IAC (idle air control valve). The IAC, like it sounds, control the idle of your car. When they go bad they will cause the low idle and stalling. The IAC is located on the throttle body and is usually held on with a couple of screws. It is an easy relatively cheap fix that you can take care of by yourself. Let me know if you have any more questions. Thanks for rating my response and for using FixYa!

ur idle is up to high take it to a reasonable shop have them adjust the idleing screw