While I'm so very sorry about
what you are experiencing, I have never read an account of Morgellons where it only comes on once a month - it's always there constantly.
With that being said though, Morgellons is even a newer discovery than Lyme - and so it's still fighting for recognition as a valid disease. There is actually very little known about
it, and even less scientific research that has been done.
I'm not sure what you are referring to when you said you have "black stuff" coming out of your skin - what kind of stuff? It is thought that Lyme and Morgellons are tied together in some manner.
This is one forum that while I haven't checked into it extensively, I do know that it's legit:
www.morgellonsuk.org.uk/symptoms.htmEven though it's based in the UK, they may know of some good sites for the US based people as well.