Hi there. The various causes of pins and
needles in feet could be due to nerve damage and
certain personal habits. Posture like crossing of knees or ankles, sitting with your legs folded or one foot under your buttocks may cause pins and needles in leg and feet. Standing up for work, imbalance of calcium, potassium, sodium, peripheral artery disease, damage to spinal cord, diabetes can all cause this paresthesia. Vitamin B1,B6, B12 deficiency, hypothyroidism need to be checked.