Vitamin D deficiency is a huge problem in GCC countries where women are traditionally covered up when they go out during the daytime. What exacerbates the issue is the heat during the day which makes going out an unpleasant experience to start off with, and a cultural desire to be lighter skinned (considered more beautiful).
In a nutshell, few women get the recommended amounts either through diet or sun exposure. This post highlights some of the dangers of Vit D deficiency. Weak bones, osteoporosis, muscle aches, joint pain, increased risk of cancer are all possible results.
Have yourself checked out by your doctor! Take cod liver oil (or other supplements) and don’t forget to let your skin enjoy the sun several days a week (it does not work through glass or with a very strong sunscreen).