Over the last few months I have developed a new symptom. Whenever I sit or lay for any length of time (30mins or more) I get a very hot, burning type sensation in my buttocks, back and head ( ie any part of me in contact with a surface). I have tried a wide variety of cushions, mattress toppers, pillows etc but it makes no difference. My GP is at a loss except to suggest a pressure relief cushion but this didn't work either. The only relief I get is from sitting on cooling gel packs and it is making me miserable. So does anyone else suffer from this or does anyone have any suggestions as to what else I can try? Thanks.