I'm a 21 year old female. My BP is WNL but my pulse is always regular but sits between 116 and 101. SPO2 is always %99, some insight would be great?

Pulse rate?? You report a rather high pulse rate. How are you measuring it? Are you measuring it yourself at your wrist when you are sitting down or when you are on a treadmill? I would get an EKG at a doc's office where you are lying flat on a table and it is elevated then, then we should think some more. Also there are plenty of cardiac stimulants out there starting with caffeine.