I am 24 yrs old. For last few days I'm having a white color bump/spot in the sclera[white part of eye] of my right eye.I don't use any contact lens or glass, but I was doing a lot eye makeup for last few days. the bump is painless and not increasing in size, but on the first day when I noticed it, it was slightly bigger and causing discomfort during blinking. I'm worried, please help.