Since I have lost the weight that I have lost so far I have noticed that my menstrual cycle has changed significantly. What used to be every 30 days has now become ever 20 days. It is much heavier and lasts longer. Could this be due in part to the weight loss? Has anyone else experienced a noticable change in their monthly?

It could be in part due to all of the changes your body is going through right now. Mine changed when I first started losing, but it was more the opposite of what you are experiencing. I went close to two months without having one.

You and I are the same age. About a year ago, I started having the exact same symptoms. Within about six months, I was having one every 13 days and it would last for close to two weeks. It was miserable. I visited my gynecologist and it turned out that my uterine lining had thickened to almost 10 inches more than what is normal. I had to have an endometrial ablation. It is a very simple and quick procedure done in an outpatient facility. She said this is fairly common for woman our age. So, if it continues, I would suggest making an appointment with your ob/gyn just to make sure everything is okay.