Pretty Little Liars viewers were pretty emotional when the show ended聽over the summer, and with the spinoff still seemingly in the far-off distance, fans were happy to see one of the show鈥檚 stars, Sasha Pieterse, join Dancing With the Stars for season 25. Although she and dance partner Gleb Savchenko have fared well in the competition so far, Pieterse opened up this week about some of the challenges she鈥檚 faced due to recent health problems.

鈥淚 gained 70-ish pounds over two years,鈥 Pieterse, 21, said in a taped segment on Tuesday鈥檚 show. Though she initially didn鈥檛 know what was causing the weight gain, Pieterse said she was recently diagnosed with polycystic ovary syndrome, a hormone imbalance that affects many women.

Along with health issues, Pieterse struggled with cruel comments from people about the changes in her body. 鈥淚t was really, really hurtful the way people reacted,鈥 she said. 鈥淭hey were saying stuff like, 鈥楽he鈥檚 pregnant.鈥 鈥榊ou鈥檙e fat.鈥 They were angry; they were mad that I look like this. It was one of the hardest things I鈥檝e ever been through.鈥

Pieterse revealed that since getting a diagnosis and starting on DWTS, she has lost 15 pounds and is happy to be getting back to feeling healthy 鈥 and more like herself again.

鈥淚t鈥檚 not an easy road, but being able to focus on getting myself healthy again and the fact that I鈥檓 seeing results now and getting better is all I can ask for,鈥 she said. Speaking with ET after the show, she also said that she hopes opening up about her struggles will help other women in dealing with the difficult-to-diagnose condition.

鈥淸S]o many women have it and they don鈥檛 know, and if you don鈥檛 catch it in time, it leads to [things like] ovarian cancer and breast cancer and all kinds of things that women deal with all the time,鈥 Pieterse explained. 鈥淸A lot of it] could鈥檝e been avoided, so if I can share that, that鈥檚 really important to me.鈥

Do you have or know someone who has PCOS? Let us know @BritandCo.

(Photos via ABC/Eric McCandless + Neilson Barnard/Getty Images for Entertainment Weekly)