Diabulimia is a psychological condition, living with type 1 means being aware of the role of food with carb counting and taking correct insulin doses which is very restrictive, teenage years come with many trials and tribulations which test an already hormonal youngster, it only takes a few 'fat' comments to stir up anger and hate which then result in omitting insulin and seeing this as the enemy, once weight loss starts then the individual is caught in the trap of believing they look acceptable and do not question the consequences as the damage is hidden, it's a condition i'd liken to an onion in so much that there are many layers to peel back to get to the root of the cause.
The saddest part is that it very often results in long term damage with eyes, nerve issues, gastro issues so years after recovery the lingering effects of this dreadful condition still hang about.
I have a friend who's daughter suffers with this and lives in denial, it's heartbreaking to see the damage it does, not just to the individual but the amount of hurt and pain caused to family members and friends, so any support is a welcome relief as the NHS are pretty clueless in coping with this.