So I have owned one nuk 5 in my day and I loved how large it was and fit so great in my mouth. I would attempt to suck on it all the time BUT I'm not sure because of the angle of my teeth or how I suck on it but I would get almost like blood bruises on the inside of my lips and it would hurt the next few days. I tried sucking it all possible ways but to no avail. So the question is.....Anybody else have this weird phenomenon happen to them? Or am I just a strange one?