Feels discomfort in breathe while runnin

Dear Sir Once upon a time 18 years back i was doing exercise in evening.after that i had my dinner and gone to bed. All of sudden i started to think and felt uncomfortable. I don't know why and suddenly my heart beat starts increasing. I tried to avoid and tried to sleep but i don't know why i felt uncomfortable in sleeping. Then i came to my father and started to cry and i shared my problem. Next day i reached for doctor consultation and doctor did the ECG and reports were normal. Doctor prescribed the medicine which was Betacap TR 40 and Alprocontin 0.5 mg. Few days later i became normal. I started to play and all outdoor and indoor activity but i started to feel discomfort in running like heart rate was increasing at the time of running. Years passed and in 2008 i felt the same problem and went to the doctor vipin jain in shakarpur delhi.i told him that i have fear from heavy sound, attending my classed, fear in lift and fear from  crowd. He prescribed the Tolol xr 50 medicine.