What palpitations might mean
The feeling is not a diagnosis by itself. It may relate to a fast sinus rhythm, extra beats, other rhythm problems, or non-cardiac issues such as anemia or thyroid overactivity. Sorting that out needs history, examination, and sometimes a recording of the rhythm.
When it is reasonable to book
If the sensation keeps returning, or comes with breathlessness, chest pain, or dizziness, or happens during effort, or there is a family history of serious rhythm problems that a doctor already knows about. These are reasons to talk, not a checklist diagnosis.
What the clinic may request
After assessment, an ECG may be recorded. A Holter can help if symptoms are intermittent. An echo is sometimes added. Not every palpitation needs every test.
When to seek emergency care
Fainting, severe chest pain, sudden shortness of breath, or palpitations with heavy sweating and a feeling of near collapse are emergency situations, not a wait for clinic hours.