I have lifelong trouble focusing and organizing , I get hyperfocused on some things but avoid other tasks, I sometimes speak out loud involuntarily, my mood shifts quickly depending on situations, I feel restless, sleep around 6 hours or wake sometimes, and my BMI is 15.


You might have ADHD, and some other stuff as well.
There is the Executive Skills Questionnaire (ESQ-R), the Diagnostic Interview for ADHD in Adults (DIVA-5), tests for mood disorders, etc. that a professional could do to inch closer.
The speaking out loud, mood shifts, lack of sleep and low appetite sounds like mania, maybe pre-psychosis states, and any related disorders, like borderline, bipolar, or schizophrenia to me. If you’re in the middle east, it should be really easy to find a doctor to prescribe you some antipsychotics for it. In my experience, describing symptoms like that, they pretty much all are eager to prescribe them. And I am not a professional, the message is just “maybe, have a look at this” :)