I have suffered from back pain since my early teens, but during periods where my body fat has been below 14% it's been more frequent and intense. Particularly on sitting down for prolonged periods of time, more so on hard surfaces. The exact area of the pain varies and can be anywhere from around my upper back and shoulder area, to the very base of my spine.
I was wondering if it had anything to do with lower levels of body fat, since the coccyx houses quite a number of nerve endings.
Does anyone else experience this?