It has been going on for at least a year.
Yes, it tears when I am inside also.
I don't even go outside without sun glasses. At least I get some type of protection from the air
No, I do not use any eye drops.
I did see an ophthalmologist about 2 years ago for treatment of a chilasian (not sure of spelling) on the same eye. She gave me a cream to put on it for a couple of months before it went away.