Can you give me advice on mental fitness for a government job please?

hi i was going through a rough patch and was deemed mentally unstable at the time by doctors and was in hospital - yes i am ashamed to admit it - you know which one i mean - any way that was late 2007 and the longest i stayed was 1.5 weeks tops but was in and out all through 2007 - then last year i went and took a fitness course where i want to be a PT but Alas competition saw me with Bulimia - or i like to use the proper name 'female athlete triad' and was last time in hospital for 4 days from friday to monday - they don't count the weekends - nov 08 - now i believe i am stable and have a strong head and am focused. i have always wanted to join either police or army - will they check my hospital records - will they see me as mentally unstable - how long will i have to wait and will i always be labeled as mental and never ever enter a government force? - the rough patch was ociated with shock and disappointment from being discarded from the army for lack of confidence - i wanted to be a soldier since i was six and tried for 4 years before i got in - 3 days before march out i was discharged