When I am applying pressure to my brakes I hear a sound that can be described as a clicking one. It is very faint, have to listen keenly. There is no squeaking, grinding or any high pitched noises that might indicate that it has something to do with my brakes wearing down etc.(I could be wrong).
To add, at some random days, when I sit or get up or sit in my vehicle I would hear a creaking/groaning noise. This was happening before the clicking noise. In some cases when I would rock the vehicle from the rear I would hear this same noise. As I stated before it is very random, a month will go by and I do not hear this creaking/groaning. Very intermittent.
What could be the possible causes? How serious of an issue are these factors likely to be?