Vibration on gear lever

Weird vibration on gear stick in driving the car, when changing gears. Another question, in turning the steering wheel to the extreme one side-hearing a grinding clank noise, what could be the problem? Oh, and I have a water level shortage in driving the car about fifteen km's. Needs to be checked on regular basis. No visible leakage, used at times between two to three cups of water every day. That is in a one way trip.