Difference in the armpit fat on both arms; is normal or (God forbid) should I be worried?

I want to ask that I recently noticed that the armpit fat on my left side is much more than it is on my right side. I am 22 and don't know for how long this difference existed since I've never looked straight in the mirror while taking a shower. So, I wanted to ask whether this difference in the armpit fat on both arms is normal or (God forbid) should I be worried? I am not worried about it giving me a weird pose as long as it is normal. Please, let me know.

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