I have been using Medela electric mini pump for 2 months. Due to the sucking motion, my nipples have been pulled outward and now they are becoming longer and longer. They are now so long that they even touch the tip of the funnel after about 5 mins pumping So now the suction effect is lost when my nipple touches the tip of the funnel and the milk is blocked and cannot be passed to the bottle. Do other mothers have this problem? And how to solve it?