I have 2 curvatures on my spine and several injuries on my tailbone and varicose veins on my left leg. i'm in pain from neck to ankles, why ?

Pain: Pain has many possible sources. Consider pain from strains, sprains, pinched nerves, and sometimes painful varicose veins.

Back and VV.: Varicose veins will not cause you to have pain from your neck to your ankles. Most likely this pain is due to your back and the veins are a separate issue. You should see both a back specialist and a vein specialist.