It is not yet known exactly where Roland was when she was found or if she was alone.
Flat mate Autumn Vara already said Roland messaged her Saturday night about a suspicious man she saw at Walgreens who took after her home.
She wasn't aware that she had been reported as missing and her state of confusion caused her to lose track of time, police said.
Another post, made by a friend of hers, she was anxious "that she was being followed by a blue truck leaving Walgreens".
Houston police got a tip from a passeryby who spotted Roland under a bridge before 8:15 a.m. nearby time Monday.
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Roland covers Texas A&M athletics for Rivals, a Yahoo!-owned online publication focusing on college sports.
Police said Monday that 29-year-old Courtney Roland suffered memory loss as a result of her reaction to the medication and she's continuing to be evaluated at a hospital.
On Sunday, the television station added, "Roland's mother received a text from her phone saying, 'hello the owner of this phone Courtney".
Brian Perroni, a reporter with sports news site 247Sports and who described himself as a family friend, told NBC News that Roland's vehicle, purse and phone were found in the Galleria mall area Sunday afternoon. She appears unharmed. She'll be taken to an area hospital for an evaluation.
The roommate said she and Courtney were meant to meet up on Sunday but she never heard back from her again.
But in the early hours of Monday morning, Brian Perroni, a former colleague, wrote on Twitter that her vehicle, purse, wallet and phone have been found in the Houston Galleria area. "Each week I contact special guests to have on and talk with me about current sports news and all things Texas A&M football and recruiting", Courtney wrote on her website. "She cared for people". "Call HPD missing person 832-394-1840".