I'm 20 years old and 184 lbs. I've started to notice my breast starting to sag a bit more that'll usual.. When I was 140 lbs enter college I wasn't too happy about how big they were. I was a size 38 D and since gaining weight I haven't gone anywhere to get a new fitting for bras. I think they are starting to sag more because of the wrong size bras I'm wearing and I wear a bra 24/7 too!!