I am 25 years old. I smoked cannabis for past 5 years and I quit smoking in Nov 2017. I am not recovered yet. I get panic sometimes resulting increased heart beats. I consulted a psychiatrist he prescribed me with Bupronian 300 mg, risdone .5 mg and excigress 10 mg. I cannot understand what my condition is. It all started with anxiety of having hiv. I got tested 2 times my result came as negative but still I doubt of having it. How can I overcome this pain in my head.