I am 42 years old. I have no kids. I have not had a period in 2 years. I currently do not have health insurance. I don't know what I should do or be doing for this.

Sorry, no way to answer this online. You could be going through menopause, you could be anemic, you could have a tumor, there are so many possibilities. Without testing, there's no way to know why this is happening. The only option is to see your doctor.