Routine changes affected my daughter's draining before her current setup. But routine changes could also arise from allergies, sleep issues, etc... (really not qualified to comment on anything being a mental thing, only that shunts not working quite right can mess all sorts of mental processes AND some postictal behavior can look very strange, people with hydro/tbi have a higher incidence of seizures than the general population). Can you talk to her surgeon's office about what your concerns are? Can you go with her to her next checkups (regular doc/surgeon)? Document/chart what you observe, it helps docs focus on the observed issues and not blow things off.