Thanks, mrsD.

I'm not taking any prescription drugs.

I take 100-400 mg magnesium supplements daily. Last night, I added 800 mg to that. Not much result.

My gastroenterologist has no insight.

My rheumatologist tested me for hypothyroid and said that I do not have it (I'm getting a second opinion from an endocrinologist next week).

My constipation is not affected by diet or exercise.

I am well-hydated.

Could it be neurological?

Do frequent enemas create dependency?

Is it possible that I have _too little_ calcium, and that is somehow throwing things off?

Thanks.