Feeling the Need to Take A Deep Breath After Developing Concentration

I am new to this site and am not entirely sure if this is an appropriate question to ask, if it is not forgive me. I practice Vipassana meditation and after some time observing the breath, I feel the need to take a deep breath in, as if I'm fixing to suffocate and require a large inhalation of Oxygen. This sensation always arises after I really feel like I have pinpointed the breath and my breathing becomes more shallow. It seems to be creating an impasse in my practice, for as I begin to feel the first Jhana arising, my mind immediately shifts its focus to the satisfaction that occurs after I breath in heavily.