Wow. I'm 25 weeks 3 days and experiencing the EXACT SAME THING. It is a throbbing, nagging pain right underneath my right breast (and occasionally below my left breast). It seems to get worse as the day goes on and it is tender to touch. I thought it might be my bra that was causing it (pushing in that spot) and then thought it might be because my breasts are MUCH bigger and heavier than before. I was searching for answers myself. Let me know if you find out what's causing this! Hopefully it's just a pregnancy pain! - Heather
I have gallstones and the pain is different usually. It is also under right breast but its like an attack - it gets worse and worse and then you have to take lots of painkillers...I actually have to take it out after the baby is born... For that, you need to avoid certain foods.but if doc says its not gallstones, then I m not sure what else it can be..