Suz,     regarding your above statement   .........   when one is diagnosed at an early age, this is the only life style they know.  Parents have placed ground rules to obtain control of which are permanently embedded throughout life.  I was fortunate to retain these rules & seldom stepped over the line (ah those teenage years)  Be that as it may, one is used to an "eat / don't eat / exercise routine"    ...........  the old saying goes something like this   "mind over matter"    The problem with adult onset is self explanatory   ........ one MUST make lifestyle alterations.   

  Remember back a "few" years   ......  you learned to walk then run, spent quite a few years running then gradually had to resort to walking  (age ??? maybe)  Possibly now the store aisles are further apart & much longer (guessing) one has to get their head around the fact that things have changed. 

  Now that I have reached the 29 ?? year mark,  I'm very happy that I was diagnosed early & NOT introduced to something else more serious    IMHO