It is tough, no question. I breastfed my son until he was one and he only bit once or twice and I didn't have an issue with feeling his teeth, but for some reason with my daughter, it was an issue. She got her first teeth before she was even five months old and I was not happy about it! I didn't have any issue with her bottom teeth (you shouldn't be able to feel them during nursing because their tongue is supposed to be over their teeth so maybe ask a lactation consultant about that) but once she got her top teeth, she started biting me. I did everything I read about to help and she would still bite me at times. By the time she was about eleven months old, she was biting more frequently and had like six teeth so that was one reason I went ahead and weaned her and honestly, I felt like it was a sign she was ready, too, b/c she wasn't as focused on nursing anymore and I simply didn't offer again and she never "asked" to nurse again. Suggestions I read for when they actually purposely bite is firmly saying "no" and removing the baby from your breast for a minute and possibly offering a teething ring if it seems like that is the issue but I don't know what to tell you about just feeling the teeth other than I got used to it and while it was less comfortable than without the teeth, I could handle it fine as long as she didn't chomp down!