So there is something called drug induced psychosis...it isn't necessarily a mental illness because it happens only when you use...there are also potential medical causes like epilepsy brain tumors etc those aren't mental illnesses either...everything I went though above was a psych condition...so you probably don't have a mental illness yet if it only happens when you use drugs or alcohol...stimulants like adderall up regulate dopamine which contributes to psychosis...the early models actually used amphetamines to trigger it...