Indoor Bouldering Session at a wall I had bouldered at many times. I have been climbing, indoors and outdoors, both roped climbing and bouldering, for over 9 years.
I was climbing an easy boulder problem on jugs with a slight overhang. The last hold was just out of my reach as I am short, so I rested before making the move. With no warning, I slipped/fell off from a height of 3 to 4 metres, flat onto my back onto the mats. Usually you get a slight warning that you're about to come off! I was winded and lay there a few minutes before getting up. I didn't report it to the wall, and my climbing partner drove me home in my car.
Three days later, I went to see my GP as my back was still hurting. I was diagnosed with soft tissue damage. However, on a second GP appointment two days later, I was sent for an x-ray and diagnosed with a fractured spine. A further appointment with a consultant confirmed an inside fracture of one thoracic vertebra, with rest and no climbing recommended. Three months later I was back climbing, which was then cut short by the first Covid-19 lockdown!