Hi, thanks for using healthcare magic
The increased heart beat can result in both the shortness of breath
and the dizzy sensation. Normally the heart beat starts at a specific point in the heart and travels along a specific pathway to stimulate the rest of the heart. Abnormal beats can occur if there is (1) increased or abnormal stimulation at this specific point (2) stimulation occurs at another point (3) the ' current or stimulation' travels along a different pathway or the normal pathway is blocked (4) there are structural abnormalities of the heart
Common causes of increased beat would be anemia
, high levels of thyroid
hormone, acute illness or pain, side effect of medication, caffeine use, other endocrine conditions, electrolyte abnormalities , in some cases the exact cause is not known
You should consider visiting your doctor for an evaluation; he or she may suggest blood tests to check for anemia and electrolyte disorder and and ECG (checks the rhythm, rate and can also identify other abnormalities).
i hope this helps