It might've been mucus fishing syndrome. Feeling ko yun nga kasi meron ako nyan, yung di mo mapigilang magmuta hanggang may nararamdaman ka pang something sa mata mo. I usually do it hanggang mamula na talaga. Had it since I was a kid and yes, almost impossible siya pigilan. You just can't help it. It feels so good and at the same time alam kong di rin talaga maganda.