Hi
Welcome to the MedHelp forum!
The symptoms of tingling and numbness could also be due to anxiety. Contact dermatitis due to coming in touch with dirt, dust, mold, pollen, sun, cold, heat, spoon, glass, food, tooth brush, plastics, toothpaste etc could be another cause. This is possible as you have it only on face, arms and legs. Low calcium and hypoparathyroidism could be the other causes. Hypothyroidism and diabetes too are the causes. It could also be due to Lyme’s disease.
Hope this helps. Please let me know if there is any thing else and do keep me posted. Take care!