in my TMT last year, I could exercise for 11 min and 25 seconds and achieved a workload of 13.40 mets. I attained a peak rate of 153 beats/minute which is 87% of the predicted maximum. The exercise was terminated owing to attainment of target heart rate . There was no classical angina. Clinically, the blood pressure response shows adequate increase from 120/80 to 160/80 and there was no S3 and S4 gallop in the recovery period. In the pre exercise there was no significant ST segment change. At the peak exercise there was 1.5-2.0 mm upsloping ST segment depression in leads 2,3aVF and 1-5-1.7mm in leads V4-V6. Increased ST segment response in leads 2,3aVF and in leads V4-V6 appeared in 11-12th minute of the exercise at the heart rate of 150 bpm and lasted for 1 minute into the recovery period. Do I have any heart problem? Do I need any medication?