Why do i have anxiety for no reason?!! do i have an anxiety disorder?

..Hi there, There is always an underlying reason for expressed anxiety, even if right now you cannot recall an immediate problem, and/or may be in denial concerning it..It may be also you have a bladder infection, not a renal kidney disorder which can cause behavioural disturbances in older people, not usually young people..This may be a good time to call your doctor and make an appointment..It is always better to be safe, than sorry..Take care...