I have a question about something I have become curious about. I bought the Lena cup in both sizes to try as my first menstrual cup. I decided to try the small one first and I was getting a lot of cramping, which was odd because I never cramp. The cramping also seemed to go away whenever I took it out. I was only able to wear it a couple of hours before it got too painful. Once my heavy flow started, I didn't feel as much pain, but I did leak. I thought it was placement and was going to the to reinsert, but it ended up being completely full. I reinserted but again it was painful. So, I decided to try the larger cup, more because of the volume and to reduce leakage. I was completely surprised to find that the larger size never hurt! It also seemed to ride higher, because the stem was completely in and I had to bear down to pinch the bottom. The smaller one, always had the stem out and I couldn't get it up higher. It just always seemed to get stuck.
I just thought this was bizarre and was curious to understand why the smaller cup hurt like cramps, but was riding lower?