This thread title:
"My old friend is back"

That's actually a good way to think of it, as a "friend" and not an enemy. It is what it is, but looking at it and embracing it rather than fighting it is probably a good thing. I read it in a book somewhere, and I think it makes sense. Embrace your troubles as friends. Easier said than done of course, and I am no exception at all! But I was just making an observation based on the thread title. I hope you're feeling better.