Suggest that you go to the top of the forum and read Forum PN Tips...
http://neurotalk.psychcentral.com/forum119.html AND
the 'Forum Sticky's' at the top of the forum posts/threads....
Both will give you a base of info about various PN's? AND then read previous posts and decide which aspects you can learn from. [Other than diagnosis and treatments is NOT EASY!]
Don't be afraid to ask questions! No question is silly or too simple for us! We've all had to learn the same way and share and aren't shy. Hope you aren't too shy either?
Keep learning! You've friends here, and support! I KNOW I've gotten more help here than anywhere else!
Hugs 's and hope - j