I have always had very regular periods, but last November I got a really heavy period. I didn't get my period again for 6 months, but I had spotting the whole time in between. When I finally got my period again it was really heavy again and really painful. Now the same thing is happening and I have not had my period since may, but I have spotting everyday. What could be causing this?

You should honestly call a doctor... a lot of things could cause this. It could be stress or hormones. It could be a large number of things. The best thing anyone can tell you right no is to go to a doctor. Don't freak out but call a doctor and let them know what is going on, they can do blood work and let you know what's going on