Please look at the conditions in my profile and advise me if I should start in dermatology, neurology, or general medicine please?

PCP always first. Always start with your pcp. No matter what. If you don't have one do your research and find one. The general practitioner is the first educated medical advisor to guide you with this and all of your medical concerns. Let him/her decide the best next step in management in your treatment and / or referral to the most appropriate specialist.
?? profile. You ask to have us look at your profile but unfortunately i personally do not have any idea how to find that date on this site sorry in general statring with a primary care physician would be well advised.