Welcome to HealthcareMagic Forum
From your detailed descrition it is clear that you have symptoms of generalised anxiety disorder, panic attacks and social anxiety disorder
. All these are types of anxiety disorder. Untreated cases lead to severe dysfunction in social/academic life and depression.
I do not know if you had stopped treatment from psychiatrist
, on which you improved in past. Considering severity of your problem, I would advise re visit psychiatrist and start treatment. Till that time do deep breathing exercise
, yoga and meditation
Wish you Good Health and all the best.
Dr. Ashish Mittal