It's not embarrassing at all, it sucks! It's torture! It's all men's fault!
Major rule #1,
get fitted. It's the one thing women ignore that is the one thing they NEED to do.
I love the Bali imitation Victoria's Secret underwire. It doesn't have those ultra-padded, bullet-proof cups and the band does not make me feel like I can't breathe. The hug stays with me most of the time and these allow me to move my arms over my head without readjusting the girls every ten minutes.
Do yourself a favor, Trish, and get a few of the same, right ones. Hand wash and hang them after EVERY wear, it will support their support much longer which supports your boob budget.
"Only cheap girls wear cheap bras."
—Mom