It has been reported that some patients have been misdiagnosed with Panic Disorder, when in fact the correct diagnosis in their specific case was Post-traumatic Stress Disorder (PTSD).
PTSD treatment focuses on cognitive behavioural therapy. Medications like SSRIs and SNRIs can also help in reducing the symptoms. Diagnosing PTSD can be challenging as there is no test to diagnose it. A mental health professional can assess the patient and make a diagnosis based on symptoms and medical history especially if the patient is somewhat comfortable reliving and recalling the events that lead to the symptoms.