Reddington’s ailment is something that is not going away.
It’s a story that we’re going to be opening up and leaning into and learning more about when we get into season eight.
It seems that he’s trying to wish it away, but everyone else in his life is really worried for him.
That ailment, which has been lurking in the background, as we saw in the finale, is very real and very present, whether Reddington wants to acknowledge that or not.