So when my car is warmed up and idling, I get a lot of vibrations. Vibrations get worse when I turn on the fan, AC, or even turn the steering wheel while sitting idle.

It often seems like it gets close to stalling, get to that 750rpm mark. plugs were just changed like 1500 miles ago, have not changed coils yet.

I want to say it is the mounts but I looked at them when I was changing the plugs and they didn't look cracked or anything unless I don't know what I'm looking for.

Car drives and runs fine other wise, power is all there.