17 year old female with resting heart rate of 106-108?

A single parameter: although bit fast, but should be interpreted in the context of your general health condition, your blood pressure, your habitus, physical activity, ? Heavy menses, follow up with your doctor if you really are suffering, good luck

A little fast But...: A healthy teen should have a slightly lower resting heart rate if in good physical condition. This rate may be a function of anemia, lack of exercise, or general low activity level. Have a routine physical exam and mention this to your doctor to assure no medical concerns.