I hear clicking noise when I pass some small bumps...not big ones..
it's not coming from the plastics or interior...it's something under the car...maybe suspension.
sways, or I am not sure.
It started about 2 month ago, about 14k miles on it.
It goes away in high speed.
I also have steering vibration during the hard stop.

Any ideas?
I have made the appointment on wed next week.
What should I tell to the tech?

the sound sound like " dok thick" very short like clicking the pen.

 

With your clicking sound and your steering vibration during stops, it almost sounds like it could be your brake pads are a little loose. Brake pads can make some clicking sounds. Also, the sway bars are another area to check out. Lastly, might be odd, but it might also be the sunroof sunshade (esp. if it's open), and deceive you to think that it's coming from below, when it' s from above. Just some ideas to check. . .