wrt. the OP, I would suggest asking Sensei to throw you around for a few minutes after each class. It would serve the double purpose of making your ukemi better and getting him used to throwing you more, thus mitigating the problem from two possible directions (if not from all possible directions).
I've had the guys ask what the gals were all giggling about as we get dressed in our dressing room more than once.
You might help to solve the problem yourself just by hanging in there, and thus becoming the inspiration for young women to follow in your footsteps.
OMG PINK WTF?!