There are a variety of causes for it. It may be normal as well. So do not jump to conclusions but yes get yourself assessed.
Next Steps
For starters get your
Thyroid profile , and also
Lipid profile in case you're overweight.
Health Tips
PCOS , Hypothyroidism must be ruled out. Watch out for other symptoms like fatigue , hairloss , body pains , muscular aches , signs of insulin resistance , etc