My Granddaughter Has Been On Qvar And Singular For A

my granddaughter has been on Qvar and singular for a few weeks, she was a normal happy child, now she is experiencing very negative behavior problems, aggression, thinks she is going to die, won't go to school, hyperventilating etc. taken to ER two times this week. Doctors say not from meds ??? These meds are the only change. It is a very helpless feeling, not knowing what to do, also like walking on eggshells. We have stopped the medication as her X-ray showed her lungs are clear. How long will these behavior side effects last and is there anything that will help them. Thank you for any advice you could share. YYYY@YYYY