Is it possible to sneeze so hard that you pull a muscle?
I think I did last night: I sneezed violently and something went just below the bottom of the rib cage on my right side, and it still aches today. 
Very True Mood: 
aggravated
aggravated
I’m a pretty violent sneezer, and I’m fairly sure I’ve given myself whiplash by sneezing a couple of times. I also headputter a door by mistake once. The more I think about it, the more I realise I may need some kind of sneezing insurance cover…
If memory serves me right from helping a friend revise for his 4th year medical exams you can pull a muscle through sneezing. Tieing shoe laces was a more common cause though!