What Is The Normal Blood Sugar Level In The Age Of 43?

Hi, I was looking for symtoms of diabeties ,i got sick an hour ago for no reason. my sister told me to check my sugar it was 60. she said eat a spoonful of sugar I did she said when i get to feeling better check it again. it was 126. what should my sugar be running for normal blood sugar. I am 43 years old 173 pounds.