Hi ~ Your new problems COULD be caused by your first surgery -- it's called the "domino effect" -- although it IS a bit soon for that to be happening, but it's not unheard of. Usually it happens later after surgery. That's cause the levels above & below the surgical site has to bear more of the load.
I wish I knew how to advise you -- each surgery is different from the other. This one could be totally different from the previous. It could be easier or it could be much more difficult. No one knows until they "get in there." Your recovery time could be longer too.

I'd be a little skeptical about going to Scotland that soon after surgery -- I'd want my doctor close at hand in case something came up. But hopefully you'll be far enough along in recovery to know how you're doing.
Best of luck. Hopefully others will chime in with their opinions. Since we don't know EXACTLY what is going to be done, it's hard to advise you. God bless & take care. Hugs, Lee