I used to take ferriten, vit d and calcium supplements to treat my hair, i am not anemic. i stopped taking those supplements all of the sudden, now i am always dizzy and having low blood pressure and somedays headaches is that because i stopped them?

Need to examine: It is not feasible to provide a meaningful opinion without taking additional history, physical examination and may be some tests. It would be prudent to see your doctor and discuss if you may be depressed. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Wish you good health!