Does your D burn quite often? Do you feel nauseous and have pain? If you do, those are all symptoms off gall bladder issues (not strickly gall bladder though). Have you had an ultrasound or hidascan to check your gall bladder?
Seems that calcium should be helping you. What dosage are you taking? Most people can take up to 1500mg of calcium a day without it affecting their kidneys... Maybe you could up your dosage if you're only currently getting a fraction of that. A few of our members take one 600mg pill in the morning and then another 600mg pill at night. It seems to help control the morning D (which has proven to be the time of day most of us have trouble with D).
I hope you can break free from the toilet soon! We are here to help if we can.
Co-Moderator for the IBS Forum