I'm fortunate in that I am but a humble D-cup. :P My closest friends that I spend the most time with are all in the DD range, so I feel small quite frequently, the bastards.
But seriously, having a larger chest can really suck. Don't get me wrong, I like my ladies, they just get in the way. There's nothing quite like knocking everything over with just your chest in front of other people, especially since they're all just basically staring at it by that point.
Finding a bra is a PAIN in the butt and they never make cute ones in bigger sizes! They're all for A or B cup, sometimes even C cup, but almost never D and above. It's like, here's your plain and hideous bra that you only found by chance. I can almost never find a bra with my band number because I'm a bit bigger around. The minute I find one, no matter what the price is, I basically HAVE to buy it for fear of never finding another one.
Then there's sports bras- HELLO, UNI-BOOB! The darn thing can't keep them from bouncing even though that's its job. I have one friend that has to wear two (or was it one and a shelf-cami?) to keep them from bouncing around a lot (which can seriously hurt).
Have I mentioned the sagging that can come from the ladies being bigger and gravity existing? Because it sucks.
Back problems later in life- my friends will have them. XD
Males, quit staring at them! Yes, they're there. Yes, they're awesome. No, you cannot touch them or blatantly stare at them. Stop it.
Clothes don't always fit right on large chested women because our boobs are too big while everything else fits. I remember the day I grew out of my favorite dress in the chest area. I was so sad. Smaller women with bigger chests (or women with really big chests) can have the problem of their shirts always being low cut because there just isn't enough fabric to cover it all.
Despite the fact that having a bigger chest can be a pain, I wouldn't give mine up for anything. I am a big girl and I would look really funny with a small chest. Ladies, love your ladies no matter their size, they give us power over men.
<3 - CFC