D i or am i getting Diabetes??:((?

Lately ive been getting head aches after eating certain sugary foods. For example the other day in cl i ate like 2 star bursts and a few skittles and got a bad head ache that lasted for like an hour. Also today the same thing happened after eating a pb and j and muffin. This seems to happen on and off often. But i don't get it because it doesn't happen every time i eat sugary things. I've also been thirsty alot lately even if ive just drank something. My mom has low blood sugar but idk if i do. I don't really know if im just over reacting or if i could have a problem? please help:(