I can make sound in my ear , since little boy. it sounds like 'click' with fluid/watery effect(hard to explain).it also comes when swallowing. normal?

Yes: As you open or close the tube between your throat & ear (the eustachian tube) you can add or release pressure on the ear drum which may cause a click. This hallends with yawning, chewing & other movements that tense the levator palitini muscle to open the tube.

Check w your dentist: Check with your dentist. It may be a sign of a TMJ problem. A proper exam will allow for you to get proper diagnosis and treatment options.

This description: Sounds more like an ear issue. Please get with your pcp or an otolaryngologist for an exam.

Normal: This comes from a structure called the eustachian tube. It connects the middle ear to the back of the throat and help to equalize the pressure behind the eardrum. When you swallow, the tube opens slightly and the clicking you hear is the movement of the eardrum as pressure equalizes. Not to worry, not only is this normal, but it is necessary for proper ear function.

Eustachian Tube: The click sound is what you hear when are opening the eustachian tube, which connects the back of the nose to the middle ear. You are equalizing the pressure between the two chambers. Sometimes this is an indicator of persistent negative pressure in the middle ear, which can be due to multiple reasons, very commonly allergies. See an ent.