instruction: i 32 year old male no co forbids doctor by profession working nephrologist since childhood I have stammering problem not always but when speaking infront of mob or when giving presentation or when history taking from patient or reading book chapter infront of whole class when ever I think of speaking then I start feeling tachycardia palpitations chest pain headache sweating I usually have constipation I used to take bromazepam before giving presentation or speaking infront of mob