Is anyone suffering from Panic attack?

Hi, im suffering from panic attacks for the last 4 or 5 years. Went to different doctors and done numerous tests. Im physically fine. My therapist confirmed me it was psychological. From PTSD or major trauma on my life. After learning more about the subject lot of my friends (both boys and girls) suffered from it but unable to speak freely about it. Because somepeople dont know full details about anxiety and panic attacks (even i dont know about it in the beginning). Some just didnt care. Please speak freely i just want your honest opinions. Thank you.