I have used Claritin (NOT D, the plain one) for allergies while BFing. It doesn't seem to be working for me this season now, and I am thinking about trying Zyrtec. I know it is L2. Has anyone taken it and experienced any decreased supply? That is what I am most concerned with. My supply is way down from being sick and dealing with allergies and lack of sleep, so I can afford any more of a dip. Thanks, ladies.