The singer posted messages about her marriage, her mother and her career on Twitter and other accounts

Credit: Tiffany Rose/WireImage

Bobbi Kristina Brown was found unconscious and unresponsive in a bathtub at home Saturday before being rushed to the hospital. Police are still investigating – but what was going on in her life leading up to the startling incident?

The 21-year-old daughter of Whitney Houston and Bobby Brown recently married longtime love Nick Gordon. The couple has raised eyebrows in the past, at least in part because Houston raised Gordon as her own. But on social media, Brown appears to be in love and a happy newlywed.

“Missing my baby,” Brown Tweeted Thursday, mentioning her husband, two days before her husband discovered her in their Roswell, Georgia, home. “Baby you’re my everything , you are my life .. Every and anything , you are ALLLL of that.”

In addition to her seemingly happy marriage, Brown appears to be following in her mom’s footsteps and has an entertainment career in the making.

“Let’s get this career up&&moving,” she also Tweeted Thursday. Three days earlier, on Jan. 26, she posted: “I need2be in the studio RITENOW! #SOONverySOON!”

Despite focusing on her marriage and career, Brown also shares her thoughts on Instagram and Twitter about her mother, who died of an accidental drowning in a bathtub in 2012. Toxicology results showed the late singer had cocaine, marijuana and other drugs in her system.

Here’s a Tweet from Monday:

On Instagram, Brown posted a photo of a tattoo of her mother that Gordon got on his forearm this summer. “We love you so much … I’m missing you more and more everyday, but this I can wake up, look at & know, you are ALWAYS there,” she wrote at the time.

While the investigation continues into what happened to Brown, a family source tells PEOPLE, “She has denied using any sort of drugs” [recently].

Even with the joy she shared about her husband and career Thursday, the same day she re-Tweeted two posts that could hint at turmoil.

“Getting your s— together is one thing, keeping it together is another,” she re-Tweeted.

Shortly after that post, in another re-Tweet, this time about her astrological sign, she posted: “#Pisces have a hard time accepting reality. Once they do realize it, it hits them like a ton of bricks.”

With reporting by STEVE HELLING

More on Bobbi Kristina Brown: