She may be down, but she's not out! After posting a somewhat cryptic update about her current status last night, Britney Spears posted another clip to Instagram today, showing the world how she relieves her stress ... through exercise!

Spears is wearing an itsy bitsy yellow sports bra and yoga pants for a garage workout, presumably with her boyfriend Sam Asghari recording the session. Brit captioned the video, "Who knew stress would be a great 5 pound weight loss. Yay for me 😉😉"

Meanwhile, new court documents reveal the pop star's conservatorship is set to be discussed in an LA courtroom May 10 -- just over a month after Spears checked into a mental health facility to seek treatment. While status hearings on the more than decade-old conservatorship is a normal course of business, this particular hearing could be more important than previous hearings. With Brit's father Jamie suffering from a serious health issue and with Britney back in psychological treatment again -- and following the family's long-time lawyer Andrew Wallet's resignation as co-conservator -- a judge could assign another co-conservator to take the reigns, should something happen to Jamie.

We hope Brit keeps giving us updates in the meanwhile ... and we hope she's feeling happy and healthy again soon!