My Menstrual is usually right on time and it not very heavy and last about 4-5 days. I had one on Oct 1. Then come Nov. it started on the 5th. Which I felt was late (a week or so) since October was a long month. And it was very light for the first few days and then then 4-5 days in it got heavier. And now it still hasn't stopped. Its not real heavy I am able to just wear a small pad but it is really dark. And I started thinking about the date it started and realized its been like 10 days. So now I'm panicking. I am 35 years old (Nov 4). I've never had any problems and I feel fine. I am very stressed out right now so at first I blamed it on that.

It could just be a wonky period. Those occur. I would say that if it doesn't clear up in a few days then go to the doctor. Most women who are regular are regular until they're not.

Yes, stress can do all sorts of things to your period. Please don't panic. Think of the 4-5 light days as not really counting, so it's really been about 5 days, and it's not even heavy (and 10 days isn't out of the norm anyway). As for dark, there is absolutely nothing wrong with anything from light pink to almost black. Pink just doesn't have any tissue lining mixed with blood, and it's more watery. Darker and even brownish is just older, which makes sense, since your period was a bit late. You are lucky to be 35 and to have had such regular periods all this time!