diabetes face tingling

Which test should I have diabetes if I have numbness and tingling in my hands, feet, ribs and face?

If the diabetes test is normal, should I ask for a glucose tolerance test too or should I be sure I did not have diabetes and continue other causes for my tingling / numbness?

If the FPG is normal then you do not have diabetes and a GTT would be nothing. Diabetes is usually present for a very long time before you experience symptoms of numbness tingling or it is not likely to be the cause of your problem. Pursue other avenues ... as reasons for your neurological symptoms.