Hello,
When explaining children according to what things, diabetes or whatever, it is necessary to take into account their evolutionary development moment (there are books of informative psychology where they talk about it in a theoretical-practical way with examples).
In addition, each person, each child is a world: one thing is that we all go through basic stages and have the same basic needs, and another the rhythm of evolution and particular needs and characteristics of each.
So you say that you do not want it to feel different, I think that we are all different (we have rhythms, degrees of sensitivity and perception, interests, tastes, etc.), and that we must teach-to respect us withAll these differences, make them a wealth and not a reason for struggle (neither shame or prestige, neither better nor worse; it is part of life).
That phrase that your child said that all children carry a bomb is typical of that age range;It is in the same style as when your beloved dog is called "Hugo", for example, and use that own name to define all dogs.It is not a child's mistake, it is part of their development, part of how they see and feel the world that surrounds them.
What comes to mind at this time is to explain that to do the things he likes, he has to eat, and that this “bomb” is part of his way of eating, which is what helps food make him feel happyAnd strong, in the same way that other children wear glasses to play with friends, or others need other things.If at any time he feels angry or does not wantThat if an adult referent understands and makes them see, with an example, that also feels similar things, they better transform their negative emotions and make their difficulties better).
Through the game it is as best learned in childhood, so finding or creating a game in which the child feels comfortable and involved can be a good option to explain anything, according to their possibilities of acting andunderstanding and their needs (stories, drawings, situations of situations, etc.).It will not serve much to give it a purely rational speech.
On the other hand, many times, if the reference adults advance events with their concern and anxiety, it is worse for children, who absorb that concern without their elders noticing or accounting.
Encouragement, that surely will do very well :)
Hugs