Phal Concerns

[scy]

I have questions about a noid phal in spike and was hoping someone could provide some answers about what's going on.

1. I found a bump forming on the otherside of a new leaf forming. I cut it off originally and disinfected with alcohol, but it just grew back next to it. Is this equivalent to a wart? Should I be concerned or is it ok to leave it alone?

2. Is a new root growing here? It seems stuck. Will this eventually make the bottom leaf fall off?

3. This is the second to bottom leaf. It has changed from olive to this dark brown with reddish tint. It's dry and scaly to the touch. The black spots were originally there when I got this orchid during Christmas, but they have gotten considerably darker and more sunken in. It is also droopy and floppy now. What should I do? Should I cut it off?

Thanks for the help as always!
Susan