About 8years Ago,my Daughter, Now 25 Started Having These Episodes...drs

About 8years ago,my daughter, now 25 started having these episodes...drs diagnosed her with panic attacks. She was hospitalized for a few days and numerous tests were performed...all coming back fine. She had an MRI of her brain and a small cyst was seen at the base of her brain. Dr.said it wasn't in a location that would cause these attacks she was having and also diagnosed her with panic attacks. She came home and wore a heart monitor for a week and not once did she have one of these attacks. She has gone years without an attack, and recently started having them again. Only now she has weakness on her left side when these attacks happen. Please help!