The following work for me

Grapes
Magnesium
High dose bit c 500-1000mg.
I don't have a real problem, going every two days but with effort but 'bloating' is terrible, most days I look like Iv swallowed a basketball, Which has made me consider it could be fluid ie something nasty however in a more rational frame of mind it's, without spelling it out, it's certainly gas due to poor gut motility.

John, I'm the same... some days I have to force myself to drink as I rarely feel the need though I'm clearly dehydrated !

On a different note Iv been absent from the forum on DR's advice. My ocd suddenly went crazy and manifested in medical matters. My bedroom is now a consulting room, Im probably anaemic from all the tests Iv done on myself and was looking how much used ambulance would be !!