Yes, work can do that, or even just the environment someone's in.
Before we left for Thailand, I was having all kinds of 'little' ailments.
From throbbing pain in my neck and lower back when I'd get up too fast or do something else funny/quickly to feeling sick a lot (stomach). When we were in Thailand, I felt none of that. Back now and it's started again. Ugh.
So it's great you can take the time off. You need to take care of yourself first. And you never know what will come up (Steem to 4 dollars again maybe?). It's for the same reasons that I dropped some of my side jobs. It was getting too much, and I felt there was no time to really go for what I want. So dropping that, and the security it brought, was scary as could be, but I think it's a good thing in the end.
So where will you be going when you go abroad? Let me know if you plan to visit Ireland!
Anyhow, good luck with everything and enjoy your time out of work. <3