Kim Zolciak was feeling her age in a new Snapchat selfie.

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The 39-year-old shared a photo and a reflective post Tuesday ahead of her 40th birthday.

The picture shows Zolciak snapping a photo with her phone in her bathroom. The normally lively star appears more tired than usual.

"Almost 40 (In May) and I'm feeling it today," she wrote, adding an anguished emoji.

Zolciak followed up by reflecting on her 10-year television career. The star came to fame on the Bravo series "The Real Housewives of Atlanta," and has also starred on "Don't Be Tardy" and "Dancing with the Stars."

"I can't believe I have been on [TV] 10 yrs! WOW it's been so incredible!" Zolciak wrote on Instagram.

"I've learned so much about me, met the love of my entire life, had babies on TV, had surgeries on TV, cried on TV, laughed on TV, got married on TV, moved 3 times on TV, had my first baby graduate on TV."

"I wrote my story in my teens in my journal and it said exactly what I have done for these last 10 yrs! what you think you create. What you believe you receive!" she told her followers.

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Zolciak will celebrate her 40th birthday May 19.

She dedicated a sweet post to her eldest daughter, Brielle Biermann, on her 21st birthday this week, calling Biermann her "pride and joy" and "best friend."