Do you regret things like this?

With some coworkers. One of them spoke about their mother's chemo/radio and how it had affected them, I also told them about my father's chemo/radio and how it affected him, and now I feel like just saying that made me feel bared, vulnerable, as if I shared too much. I want to puke. I feel like I want to take that moment back. Why did I say anything? I wish I hadn't.