The worm sort of looks like strongyloides, but they are usually white. The blue and black "worms" you are seeing are what Morgellon's sufferers call fibers. The sores that won't heal sounds a lot like Morgellon's too. Sometimes, from what I've read, Strongyloides and Morgellon's co-exist. If you go to the Morgellon's forum, you may get more help.