<s>[INST] Hello doctor. I am 28 years old. Have a son 7 years old. I started having a constant heart beat of between 112 and 117 beats per minute. At first i thought i was unfit. I bought a trojan exercise bicycle and tried to ride that. My pulse then goes up to 163. I then stopped because i dont know if its dangerous.. should i seek medical help? Or maybe just by Cardio care disprins? Please help? [/INST] Check ur thyroid hormones and get an ECG. Do u feel irregular pulse/heart beat sometimes ? Do u have palpitations? Blood pressure? Revert back & also get examined by physician . </s>