I haven't been able to go shopping for at least a year because of severe back pain at the bra back strap level no matter how loose it is. I finally bit the bullet & just started without a bra instead of taking it off on the way home. Sure enough, I was able to last running around town for 3 or 4 hrs! So now I'm trying to learn to not be self conscious going bra less. I'm a D cup, so it's an issue, but it's bra less or stay home. I've tried sports bras & the shirts with built in shelf bras, & it's always the same thing, a severe back ache at the bra back band level bringing me to tears.