Fluid leak from an ear or ears is called otorrhea. Typically, it is caused by infection or inflammation of the middle ear or external auditory canal - the place where earwax accumulates.
Infection of the middle ear (the space behind your eardrum normally filled with air which connects to the back of your throat via Eustachian tube), also known as otitis media causes ear pain, feeling of fullness, decreased hearing and if there is drainage it may be pusy, and usually means ear drum has been compromised. These infections are common in children but occasionally may happen in adults.Otitis externa
AKA swimmer's ear is a problem in the ear canal and is typically painful and sometimes itchy. It can happen due to infection (ex. too vigorous cotton swab cleaning breaks the lining and allows bacteria to enter), inflammation such as from excessive moisture trapped by ear wax or wearing headphones. Ear discharge can be clear, white or yellow or even sometimes bloody depending on an underlying cause.
Your clear watery drainage may conceivably be caused by either of these conditions but clear watery - more viscous than water as you described - discharge is alway suspicious for cerebrospinal fluid (CSF) leak. While most often it is caused by trauma, it may be caused by masses or tumors, infection, or by a mass next to what is called "tegmen bone defect" which can get worse with age. The latter is the most common cause of spontaneous CSF leak in adults.
What I am trying to stress that even though your symptoms may be due to a relatively benign condition it is important to rule out more serious etiology (cause). It has already been a few days and I would probably not wait much longer especially if the drainage keeps coming. Your doctor should refer you to an ENT doc to make sure the fluid leaking from your ear is not CSF. You will likely need a CT scan to diagnose the problem.