I am a 42 year old. I have recently gotten a normal Pap. I have high cholesterol. I have gotten my period every 2 weeks for the last 2 months. What could the problem be?

Hormone imbalance ? Perhaps getting closer to a change of life issue? and sometimes this just happens every now and then, or some women skip a period every now and then.
If it keeps doing it, time for a medical check up