I'm 27 years old, and was diagnosed with an extremely high heart rate in february. i'm a small woman, so when is the right time to go to the hospital?

If rest HR is > 140 : There are many causes of high hr. Svt comes out of nowhere, results in fast palpitations, and usually hr > 140. Sinus tachycardia can occur with anxiety or any illness, or pregnancy, or stimulants such as nicotine and caffeine. If your hr is less than about 100 at rest, that is normal. You can find out your average hr with holter monitor (doc orders). If u feel ok, go to outpt doc, not hospital.