Hi @Angel12
Tired and lonely is hard. There are people here on the forum who experience this too, one or the other, or both at the same time. I personally relate feeling as though I am not functioning as who I am at different times in my life. Hope you get a good answer about neurology.
The 'Good Morning!' discussion thread is a good place to meet other members. It has become a bit of a drop-in place throughout the day, members usually sending short greetings to each other, and little chats:
https://saneforums.org/t5/Social-Spaces/Good-Morning/m-p/254524
Feel free to write more about what you are going through here, and to enter into any of the discussion threads on the forum you may be drawn to. Searching the 'Lived Experience' forum from its front page can help find discussions about subjects that may be relevant to you.
Well wishes.