Sarah posted two separate photos and long descriptions about coming to terms with her diagnosis, which she wrote about on the eve of World Mental Health Day. In her first post, Sarah shows a photo of a small white pill in her hand.

She began, "One year ago today, I walked into a physician’s office seeking a prescription for Xanax. My anxiety was so intense, I was having graphic visualizations of dying in 'final destination' like scenarios. My body was clenched and shaky. I’d wake up in the middle of the night paranoid that people were trying to sabotage me. Then, I’d stay awake for the next 20 hours figuring out how I would defend myself."

Sarah explained she "didn’t walk out of the Dr.’s office that day with an Rx like I’d hoped for," but instead with a bipolar II diagnosis.

The former "Bachelor" Season 17 cast member recalled that after meeting with a psychiatrist, she felt flooded with emotion.

She shared, "I still got into my car and burst into tears. 'How will I live with this? How will I tell my parents? Will they feel responsible?"

Referencing her boyfriend, she added, "How will I tell Dylan? This will be too much. I am too much. He will leave me.'"

Sarah wrote about how bipolar disorder "is so stigmatized" and in actuality, "bipolar is a spectrum illness and isn’t as black and white as the name would suggest."

In her second post, Sarah opened up about being on medication and her internal debate on whether or not to take it.

She admitted, "I sat with a prescription bottle in my purse for a week before telling my family or Dylan. I tried reasoning that I was strong enough to walk it off and didn’t need to tell them at all."

Sarah said she "received mixed opinions about whether or not to take the medication," but made the decision for herself to do it.

She wrote of her decision, "360 days since starting my medicine, and 52 weeks of therapy later, I keep saying to myself 'so this is how I’m supposed to feel.' I feared I would be numb, or in a fog—but I have better clarity than ever. I’ve had zero side effects. I know myself better."

Sarah explained that starting the medicine helped her come to terms with herself and allowed her to "set boundaries, make peace with my body, make peace with food, slow down, and re-evaluate behaviors, relationships and priorities that I was not able to realistically achieve solely with holistic treatment."