Welcome to HCM.
You seem to have localised itching and numbness
in some areas.
Nothing is serious as you are healthy otherwise.
Itching may be due to dryness or xerosis. It may be due to senile i.e. old age changes... It may be called senile pruritus
Moisturising lotion or cream may improve.
Numbness in genital area may be psychological.
It may remain for short time.
Howevever, you may be investigated for DM, Anaemia
, renal diseases..etc.
You consult dermatologist
I hope you got my answer.
Dr. Ilyas Patel MD