Should I be worried about her?

My girlfriend and I have been in a relationship for over 4 years now. Recently, she began to show more skin by wearing sports bras along with short shorts in public, no matter if she's shopping with her friends or just strolling in the city. Obviously I've never been controlling, so I did not give an opinion on the same. However, she's been doing this consistently, and I wonder if I am overthinking or if she's been liking others' attention more in recent times. I've never initiated this conversation, but it worries me. How do I go about this?

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10 mo
I'm getting tensed fellas. Could you please help me?
Should I be worried about her?
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