I have low vitamin d2, b12, and recently edema in my legs could all these be connected in some way? i am tired of being tired and sore.

Likely: Vitamin d deficiency is rampant nowadays and accounts for much of the "unexplained" aches and pains in children and adults. You need to find why you are B12 deficient unless you are a vegetarian, and address this. A good cardiovascular exam will clarify whether you leg edema is due to venous insufficiency or something involving lungs / heart. Wish you luck, stay proactive.