There are many things that can cause a woman to stop having periods. Since you have not had sex in years we can rule out pregnancy. Other causes are:
Low body weight
Excessive exercise
Pituitary tumor
Uterine scarring- Have you had a D&C? Have you been treated for fibroid tumors? Have you ever had a C section?
Early menopause
Contraceptives
Stress
Medication (chemotherapy, antidepressants, antipsychotics, corticosteroids)
Hormone imbalance
Breastfeeding

The only things that apply to me above are Stress and C-section. I had my first and only c-section back in 2006. When will my period ever kick in again? I'm guessing I'd have to make an appointment with a OB/GYN doctor to see what's going on if anything else. Also, I don't drink alcohol nor do I smoke. Anyway, just worried what in the world is going on with my body.

I can understand your fears. One of my sisters has a crazy cycle. She'll go from having a period that lasts several months to only having one period a year.
I wish I could tell you more but, like you said, your best bet is to see a gynecologist and get checked out.
Good luck. I hope your problem is resolved soon.