Thanks for asking.
Based on your query, my opinion is as follows.
1. Appears to be supra ventricular tachycardia
2. Get an ECG to evaluate for other associated arrhythmia
. SVT can occur in normal conditions and increase during stress
. Not to worry.
3. However, if associated light headedness, need to evaluate for anemia
or blood pressure abnormalities. ECG will help in confirmation of any abnormal rhythms. Meet your doctor to get these tests done.
Hope it helps.
Any further queries, happy to help again.