<s>[INST] I am a 30 yr old female that has been experiencing an irregular heart beat brought on by possible stress of starting a new position at work. Ever since I atarted it my heart has had random episodes of quick beats to where it feels like two at a time .. Its noticeable and im wondering whats wrong. No change if anything other than my job. [/INST] Hi, two beats which you feel in succession may be because of extra beats, the change in job and early anxiety about fitting in new place may increase the stress hormones like a Chat Doctor.  Both the situation is completely benign and just some relaxation techniques would help. If it's too troublesome a 24 hour holder would be the best test to evaluate the same or and EKG during the episode. Also, for your age rule out thyroid as the cause if associated symptoms are present. Regards  </s>