
The subject of ADHD is endless
Physical health conditions linked with ADHD There are a number of physical conditions that are linked to ADHD. For example women with ADHD are more at risk of fibromyalgia, depression and anxiety. Those with ADHD tend not to report physical symptoms that could be linked to their mental illness because they don't link the two. In fact A large number physical health conditions go unreported, undiagnosed and untreated. It is important more research is done into the physical symptoms and illnesses that are being linked to ADHD. Patience with this mental illness are far less likely to self report medical conditions due to a lack of confidence and information linking their symptoms to their mental health. Much more education is needed. The mind controls the body and therefore it makes perfect sense that many physical symptoms are linked to mental illness.
The mind controls the body

Stomach disorders it's very common for instance impatience with acute anxiety. I myself have mild symptoms of ADHD I was diagnosed with a generalised anxiety disorder at the age of 12. Physical manifestations of this, are acute vomiting, migraines, and skin conditions. There was one incident where the vomiting lasted for three months, two weeks of which were spent on the ward for stomach conditions in the local hospital. Therefore we can only come to the conclusion that too much emphasis is put I'm treating the physical symptoms of physical illness. The old saying "don't bother with the monkey go straight to the organ grinder quiet comes to mind when I think of this. The organ grinder being at mind at the top of the tree, in charge of what goes on with your physical body. If the mind is the control centre, then why don't we put more links between mental health and physical health. Those with ADHD are far more likely to suffer severe brain injuries through road accidents and Sport.
The subject of ADHD is endless

Eating disorders are already linked with mental health, binge and comfort eating tend to be an endless circle. Hyperactivity leading to the need for high sugar high carb content, then the emotional side kicks in with depression or low self-esteem. Leading to low mood and quite often these patients suffer intrusive and suicidal thoughts. Bulimia and anorexia all very typical conditions were mental health and physical health and one in the same thing. Impulsiveness quite often leads to excessive alcohol Intake and misuse of drugs. Substance misuse and Addiction only serve to create some dangerous physical symptoms and escalation of ADHD or any other related mental illness. This just becomes a cycle at unless Intervention it's found very early can result in tragedy. Undiagnosed ADHD in children and adolescence can lead to suicide in adolescence or early adulthood.
Suicide and ADHD

The suicide rate amongst young people it's growing to an intolerable level. Especially since the pandemic and lockdowns. Those young people with ADHD and similar mental health issues, suffered much increased symptoms of their condition during the lockdown. ADHD is known for the patient to display a lack of conscientiousness. Lack of attention personal care and a lack of pride in themselves is the foundation for the level of depression and low self-esteem that can lead to suicidal thoughts. The subject of ADHD is endless A lack of behavioural inhibition it's very common with this condition. Children with ADHD must be given boundaries from a very young age. These children will push the limits in every way until they find their boundaries. ADHD simply has absolutely no filters. Of course they still know right from wrong, But impulsive behaviour means that behavioural inhibition it's difficult to learn. Behaviour that is acceptable and not acceptable it's very difficult for these children to gauge. Learning control in any area of life is extremely difficult. Maybe a good analogy of this would be to imagine a lift with several floors. The Neurotypical brain would say to itself but there has to be a limit to how far is safe for the lift to travel. The ADHD brain we think "why can't you just go on forever ". In fact if you told someone with ADHD the lift can only go to level 10, that would be seen as a challenge to push the lift further then they had been told it was safe for it to go
Parenting is where it starts

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2827638/
So maybe the answer with ADHD is training young children to utilise the subjects they are particularly good at an interested in. A child with ADHD will only listen and engage in a subject a task they are interested in. If something does not interest them it's a complete waste of time. If this is something they can engage in, then that lack of limits can mean that there are no limits to their success. Channelling their limitless energy both physical and mental means they really can excel at their chosen subject and career/work. So it is important when parenting a child with ADHD, that hard and fast boundaries are set right from the word go. He's have to be consistent and achievable. Therefore discipline is very important when parenting and teaching young children with this condition. It seems that so far many diagnoses you're too late I'm being attained. In many cases diagnosis comes in adolescence early when the Encyclopedia of learned behaviour it's fairly deep is it in the child's mind.