Am I taking too much supplemental Vitamin D?

I am 53 years old.  I take a woman's multivitamin with 800 IU of Vitamin D, a caltrate with 400 IU and an Estroven( a natural supplement for menopause) with an additional 800 IU.  I was reading an article on the positives of Vitamin D and I looked to see how much I was taking in with my supplements.  .  My total is 2000 IU daily...is it possible that I am taking in too much ...these are the only medications that I take other than an occasional ibuprofin.  

[Renee Radenberg]

An intake of Vitamin D 400 IU is sufficient for your age. You should not go over that amount in supplementation. 2000 IU is the tolerable upper intake level for adults; however, you can be at risk for toxicity (weak muscles, weak bones, excessive bleeding, and kidney stones) if you also consume large amounts of fortified milk / dairy products and fish. Vitamin D is available through our foods - Fortified milk, breakfast cereals, egg yolks, fatty fish, fish oils, and the sun. Sit at a window with the sun shining in for about 1/2 hour (few times a week) and that will help you get enough Vitamin D. Suggest you find another calcium or a multivitamin supplement with less Vitamin D (or none at all) to help lower the amount of supplementation of Vitamin D.