f.lux

Anybody here using flux?
I used to use it, but I deleted it for one reason. I wanted to confirm my findings yesterday so I installed it again.

Today I woke up, sat down for like 1 hour, and my left eye was so red from blood vessels it looked like something hit me in the eye.

So I deleted f.lux and now the redness is almost gone. Am I the only one with such experiences with f.lux?