Question: Hi, I'm 29 year old male. Weigh around 80 kg. Height 5 feet 9 inch. I have been diagnosed by sinus tachycardia multiple times in last 4 months. I have taken multiple ECG, all showing everything normal but high heart rate. As high as 130 BPM. At times my heart rate is around 90 BPM. I did 2d echo and everything was normal. They did my thyroid, random blood sugar, and other electrolyte tests. Everything normal. I have shown this to multiple cardiologists. Everyone said its normal and probably due to anxiety. I do feel heavy chest and sometimes very very mild pain in left side of chest. They gave me anxiety pills, still when I wake up in the morning my heart rate stays around 100 BPM and at times goes to 120. This is affecting my normal life as I keep checking my heart rate every now and then.

I'm little asthamatic and use to take a pump foracort quite regularly (4-5 times a day).
But now I have stopped using it for last 2 months as my doctors said that could be it, instead I use budosonide only when required (2-3 times a week). Still it continues to trouble in the same way. I use to drink lot of coffee but I stoped that as well completely for last 2 months.

I have few questions.

1) can there be anything else then what has already been tested causing it?

2) one of the arrthmia specialist said I can not have inappropriate sinus tachycardia as my heart rate comes down to 80-90 sometimes. Its 80-90 for couple of days and then increases again to 90-110. Is it true.

3) can I excersize safely?

4) what should I do to cure it? I'm already planning yoga.

5) My doctors have told me its not life threatening. Is it true?

6) could you please let me know any immideate things I should do at the time of palpatations.?

Thank you so much for replying Doctor.

I have started taking Concor 2.5 as prescribed by my doctor. Once a day in morning, for a month.

Is it a safe medicine? It should not cause complications in future. Thanks in advance.