If she continues to have hairballs, one thing to try is combing her daily with a super fine comb (the kind made for combing fleas out of a cat's fur are great). Or she might do well on Petromalt, instead of Catlax. Petromalt is like a combo of malt and Vaseline, and kitties love it. It's designed to take down hairballs (literally take them down the esophagus) and move them through the digestive tract. But unless she has a continuing problem, I would not regularly give even Petromalt, let alone a laxative on the regular. Their diet should take care of things of that type.
She got sick on my side of the bed. Typical. It's a hairball. She has never had hairballs before. Usually just a little stomach acid. She makes me so worried. She had emergency surgery in January 2019 and constipated in late 2019. She is a baby and makes me sick with worry.