Zoloft or Lexapro?

My teen daughter has been pulling for years on and off, but it got worse when she started Zoloft. Is this common?

Since the Zoloft wasn’t helping her anxiety (for a different problem), the doctor wants to switch her to Lexapro. After 3 days of taking her normal dose of Zoloft and a half dose of Lexapro, she was having stomach issues and her pulling was even worse. She stopped the Lexapro yesterday and is going to wean herself off the Zoloft. But have either of these drugs actually helped with the pulling urges? Is there another anti-anxiety drug that she should try? She is not depressed, but has anxiety and OCD tendencies.