I do understand. For anyone that has IBS or Crohn's or any autoimmune disorder I highly recommend doing a delayed food response test. I did this a year ago STILL undiagnosed after going through test and tests as well as e/r visits STILL without a diagnosis. I was getting violently sick with severe abdominal pain and vomiting.
I do know now finally after 4 years that I have Crohn's. When I did the food test I came back to 40 foods that my body reacts to as well as severe Candida which I added to the test because I was sure I had it.
I look back to my food log entries going back to 4 years and every time I had a severe flare up, I had eaten one of those foods that I responded to on this test.
I am doing a lot better but still have a road ahead of me. I Have not been able to have those foods yet because when I have tried to reintroduce my Crohn's flares up real bad. I have a long way to go but I believe this tool to be so helpful as far as regaining some control. It is also true about trying to stay on a low carb diet. I read more and more about this. The link to the test is http://www.immunolabs.com/patients/products/blood-print/#154 you can look at the 154 foods they test. A delayed reaction can occur 3-72 hours after you eat a food! Almost impossible to keep track of without this tool.