Movedalot Doesn't sound digestive which usually creates agonising spasms of pain. Worth considering gynaecological – just because it doesn't work any more doesn't mean it can't cause problems – or kidneys or gallstones, both of which I understand are pretty awful. My guess would be gallstones but I have absolutely no medical qualifications, just – if you'll pardon the expression – a gut feeling. In the days when my guts use to block completely, I found a hot water bottle helped hugely. Don't be tempted to mock such simple help – bowel adhesions are known to be one of the most excruciating pains anyone can suffer so if it helps those, it might help you. I do hope you feel better soon, the GP sorts you out and that you are well enough for the concert. If you're not, well, it's only one concert not the end of the world.