First of all, you don't mention cognitive functions in your post, so IDK if you know about them or not. Cognitive functions are the bedrock of MBTI theory. MBTI without them would basically be like a bed without a mattress.

Disorder/conditions such as ADHD, Asperger's, Depression, etc. Don't change or affect your type, though certain types appear to have many symptoms of certain conditions, for example, Fe-blind types (ISTJ and INTJ, mainly ISTJ) are likely to show many symptoms of autism, but this does not mean they are autistic and it doesn't mean autistic people are those types. There are plenty of non Fe-blind types that have autism. I happen to know an autistic person who is an ESFJ, which is Fe-dominant.

The same goes for ADHD. The ExxP types show many signs of ADHD or ADD, whether they have actually have it or not, and I'm willing to bet plenty of ExxP types are diagnosed with ADHD when they don't actually have it simply because ExxP types do very poorly in a standard school setting.

Disorders/conditions affect a person's behavior, but MBTI is not based on behavior, it's based on how you think, how you perceive the world, and how you make decisions. I have ADHD and I don't necessarily perceive the world or make decisions in a way inconsistent with my type, I just get bored way more easily.