should I be concerned

Everytime Finn eats he goes to the litterbox right away. I think he has done this for at least 6 months. He is healthy aside from an occassional sneeze. He is playful and he does not have anything unusual coming out of him. Is this normal cat behavior. Darci doesnt do it which makes me wonder.

As long as he's not going in and out a lot with no results its probably normal for him. Sometimes Charlie will go right before he eats.

If he's going ok don't worry about it - I have a litterbox in every main room and I swear the horrors wait for me to settle down somewhere and get comfortable before using the nearest one for something smelly