Is touretes, ocd, odd and anxiety in a child....a brain developement issue?

All hand in hand...: Think of your own experience - anxiety: subjective feeling of being overwhelmed when not in control. We gain control by creating routines/patterns (excess=ocd), but we're also quite stubborn and unwilling to accept redirection if not comfortable for us (excess= odd) - "bad attitude" due to anxiety(?).Tourette's:perceived to be neurologic, but anxiety flares it up - all related brain pathways?

Not that we know.: However, if asking whether it's genetic or not, there seems to be a genetic component to all of those disorders with odd (opositional defiant disorder) having no known link. Anxiety, especially panic disoder and agoraphobia, have a somewhat stronger link but not to the degree tourettes and OCD (obsessive compulsive disorder) have. No brain "development issues" have been found in these disorders.

Neurochemical abnorm: Each of these disorders is related to abnormal neurochemical balance, that becomes evident during child development.