They could be related & some professionals believe to be related to hormones, you might want to get your hormone levels checked by a doctor, other signs of hormone imbalances could be hirsutism & iregular monthly cycles.
There are some natural herbs that help to balance hormones as well as the raw food diet that helps to fix & heal the bodies natural homeostasis to the way the body should function by giving the body what it needs to function properly & release the toxions that mess with the bodies natural functions.