I probably broke a rib, or damaged some cartilege last summer. I never went to a doctor because it was "fine", also our 1177.se site even says not to go unless its very painful and so on.

Week 2 was worst I would say. I was sneezing a lot for some reason.

The weird thing though, it was fully healed (it felt like) week 4, but then suddenly several weeks later the same exact pain came back, without me having done anything similar to the first fall from a MTB. It did go away again though, so its all good now!!