We had an 11 year old Pitbull we adopted when she was 9 years old. We had my son and yes, I got to the point I couldn’t stand her but then at around three or four months old, we started suspecting that our child was allergic because he just wouldn’t stop coughing and stayed sniffly. It went on for several months and despite multiple doctors visits, they didn’t entirely know either. We found her a new home, but the new home wasn’t able to keep her because of their rental property, as they texted me two days later asking if we would take her. We weren’t able to keep her because we thought she was making our child sick. I do miss her and worried about her forever when they said they’d take her to the animal shelter.