Wow, I never thought about this, but it does make sense... So, if you do some excersises, you shouldn't fell that back pain or it's just nature thing? Like, there are some huge tits woman, not even fat or looking strong and they say they don't feel any pain, and on the other hand, there are girl that have like handfull tits and they say they are causing back problems, even if they try some excersise... So I just don't get how to solve this problem or is it even possible? Like, if you start feeling back pain, does it mean that it's too late for excersise?