My eye lids swell a little bit and there is watery white discharge. Worse when wake up/use PC. No itchiness. No redness. Persisted for 4-5 months. Why?

Nado lagrimal duct . Nado lacrimal duct is in inner corner of eye draining tears from eye to nose . If you cry or have a cold - nose runs. If overnight duct swells, inflames, obstructs or other possible reasons - tears or discharge spills over from eye out. Gentle inner corner massage and eye lavage May help . If more symptoms - see your doc . .
Ophthalmologist. Consult an ophthalmologist as you may have a problem with blockages in the eyelid structures that keep your eyes from becoming dry during daytime hours. Allergies are the commonest cause of eyelid swelling,however.