I suffered from a pain in the same place - on the right hand side just below my ribcage sometimes extending through to my back. It caused me the most pain at night when I was lying on my right hand side and made me wake up two or three times a night. I am fair fat and over forty. The doctor sent me for an ultrasound scan of my gall bladder but they didn't find anything. I returned to my doctor complaining of the same thing for almost three years. The trouble was that the pain wasn't constant and I cancelled appointments with the consultant when I couldn't feel the pain only for the pain to return the next day. I noticed that the pain was worse after I had eaten a fatty meal e.g. cauliflower cheese, thai green curry or spaghetti bolognese. This was pre- slimming world days. I went on holiday to France this year and had a lot of salads and meals cooked by someone else and the pain decreased almost to the point of non-existence, but when I came back and started Slimming World the pain came back with a vengeance. Anyway the point is, after thinking about the pattern of it, and realising that my doctor wasn't going to sort it, I decided to try consuming olive oil and olives. Not in stupid amounts- I didn't want to be reckless and I also didn't want to go "off-plan". I started this on the 8th of December since then I have had about 2 syns a day in olives or extra virgin olive oil. The pain diminished considerably the first night and since then has completely gone except for one night when I had only had 0.5 syns worth. I expected my weight loss to go down, but it has actually increased. Last week I attended 2 Christmas dinners, one supper party and visited my Mum. Whilst I was trying to be sensible, I was expecting a weight gain, but in fact I lost 3lb. My theory is that Slimming world can turn into a very low fat diet and the fats can be the wrong sort. You need some HDL oils to keep your gall bladder working properly. It's really just turning the SW diet into the classic Mediterranean diet. I am feeling healthier than I have done for ages but that might be just that I'm sleeping better. Anyway I hope this helps.