Periodically I get up in the morning and I feel as if there is an eyelash or sty under one or both of my eyelids. The eye continuously waters, swells and reddens for a couple of hours. Then is fine as quickly as it appeared. Then I'll go weeks without this happening. I've seen my primary and an eye specialist who tell me there is nothing wrong or can't find anything. After several weeks of no problems with either eye, today out of nowhere my left eye became irritated (as described above), stayed that way for a couple of hours and then was fine. About 20 minutes ago it started to become irritated again. This is the first time I've had 2 episodes in one day. I've looked and there are no foreign objects in the eye, just very red and watering a lot. I am 62 and other than this have excellent health.