Flicking feeling inside??

Larissa

So I’m using a Lena cup for the first time and the first two or three times i put the cup in i didn’t have this sensation but now the last three times i HAVE had this sensation of being flicked from the inside. It happens two times and then stops. I’m assuming this means that I don’t have it sealed correctly because it leaks but when I get it out it still makes the suction noise. Any ideas?