You seem to be rather anxious.
You have not said much - only weight and age / not even the gender, height etc.
With a strong family history and overweight
, and now symptoms - the first thing to do will be to go to your GP - as soon as possible - to look for Diabetes
, as you have guessed Earlier, the better - before complications....
Anything at this stage - apart from advice on obesity - is guess work
SEE YOUR GP / SEE HIM SOON / HAVE LAB TESTS