This is my second cycle using my Keeper Size B. I am IN LOVE with it... but its a love/hate relationship. Ive got leakage issues. Its usually the last half of my period. And its not because it is too full. One thing I HAVE noticed is that when I check it its full of bubbles. In any case, its leaking. Not TONS, but enough that I have to wear something more than a pantyliner. And im clueless. Help?