I have a colleague who loudly slaps his bare skin pretty much constantly and regularly makes loud, bizarre noises. I believe this is something to do with OCD, and it wasn't a problem until recently, as he used to sit a fair distance away from me.
There's been a recent desk move and now he's close enough to be distracting - and it's impacting my ability to concentrate. I've spoken to him previously about it and I honestly don't think it's under his control, but I also feel extremely bad going to management about it. That being said, I need to be able to concentrate on what I'm doing (and headphones aren't an option, I pair program a lot).
What's the best option in this situation?