I have tingling in hands & feet, where if I stand too long my feet will go numb, walking is like I am on sponges, my creatinine level was elevated at last physical, also the hole in my heart has never closed, only medication is 2 1/2 mill gram of lizinapril, what do you think? Thyroid, diabetic? The tingling is not there when I get up in the morning but after being up for awhile it starts, especially bad standing for periods of time especially during church when holding the hymnal.