(CNN) Demi Lovato has shared a health update with her fans.

The 26-year-old singer was hospitalized in July after an apparent overdose and has been mostly keeping to herself while she focuses on her recovery.

"All my fans need to know is I'm working hard on myself, I'm happy and clean and I'm SO grateful for their support," she said Friday night in one of several tweets.

I would love to set the record straight on all the rumors out there but I literally don't owe anyone anything so I'm not going to. All my fans need to know is I'm working hard on myself, I'm happy and clean and I'm SO grateful for their support. 💕 — Demi Lovato (@ddlovato) December 22, 2018

"I'm so blessed I get to take this time to be with family, relax, work on my mind, body and soul and come back when I'm ready. I have my fans to thank for that."

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