Hi, I' new here, but I was wondering if anyone found taking vitamins/supplements helped them and which vitamins. I have iron, calcium, vitamin d and glucosamine sulfate, and I didn't think they were doing much, but since I stopped taking them I feel really lethargic. Has anyone had any success? I've heard quite a bit about Magnesium as well. I'm a student and supplements are expensive so I'm hoping to get some advice prior to purchase. Thanks!