Feels like too much air?

I just got a LENA Sensitive (small) and I put it in for the first time before bed. It felt like I had a lot of air. I actually did the cow yoga pose and broke the seal and it let some air out. When I put it back in this morning, it felt like some(nit as much) air was in there again. Is this a beginner's problem? Does it have to do with the number of attempts?

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