hi I am a 47 yr old mother of 2 ages 18 and 11, I have gull stones and they need to come out. befor that I need camera to investigate other issues such as ulcers. I also have low iron and on b12 injections every 4 wks, and also suffer from underactive tyroid and take 250mg of tyroxine for that too., I am arthritic too and waiting for a bone density scan. but my main worry is my bowls I can go 3 wks with no movements and on times I can see white chalky deposits or blood in it, and other times it can be normal. can you help please, I am on iron tablets too