A few other points to add. I am currently doing the following for my condition. Not sure how to edit my prior post. New to this.

Have been working hard for 18 months to get a reliable protocol for regularity. Please review and comment.

Medication and food consumed between 7:30am and 6:30pm. Daily

300 mg of magnesium citrate every morning with 32 to 40 oz. of cold water, sometimes with 1/2 cup of hot coffee added to the water. Sometimes add 500 mg of vitamin C supplement not everyday. Can result om 3-4
3-4 major b/movements before eating. Seem to have the same effect that people get with linzess without 2 hours of diarrhea.

17mg of miralax - With brunch. Retired so I eat two meals a day brunch around 11:00am plus dinner around 6.

Food for brunch: 1/2 cup coffee with nondairy creamer, blueberries, baked beans, cooked collards and whole pear or apple or whole avocado, zucchini, and slice of liverwurst for protein, 1 kiwi fruit, olive oil on pears and zucchini. I am 90 % vegan so little meat, gluten, or dairy.

Cooked and raw veg for dinner + 6 oz. of fish and water only most of the day working up to 64 + ozs.

Have been following the above protocol but have had some issues lately.

My above protocol which was doable is now sometimes produces loose stools. Just need to get it slowed down. Want to keep miralax at 1 dose a day and go from there. Problem is that for several months, starting with daily miralax per the GI. I was unhappy with my results, needed to add mag citrate to get good movements. Now I sometimes have diarrhea prior to breakfast with just the one dose if miralax.. Anyone else taking miralax with occasional vitamin C and daily magnesium supplement having overreaction problems? Was on Bactrim antibiotic for 10 days for a skin infection and developed small yeast infection from Bactrim. But this has resolved. I may add kimchi improve this situation. Antibiotic may have also affected my digestive tract. May take miralax and magnesium with food to slow reaction. Male, 69,208. Please respond with any advice or comments.

EPSOM SALT!!

Use how? Bathe in it, drink it? How much, how often? Thanks

You will find great results with Colon Care Formula by Yerbe Prima. Mix with water as did. Take 2 hrs away from prescription meds and other supplements. This is a mix of great fibers and contains no stimulant laxative. Use daily fir best results.

The first thing that comes to mind when having IBS after being on antibiotics is probiotics but antibiotics also cause thiamine to be diminished in addition to other causes found in the stuttersence link and there is a good possibility your IBS is from a combination. Activating thiamine is needed before you benefit from it and for that you need magnesium. Stress, pain and others found in the krispin link cause magnesium loss putting you in a deficiency state. The krispin link also has a formula for calculating daily magnesium. The brain and vagus nerve are affected by low activated thiamine and in turn, because they control function in the gut, an IBS condition results. These links offer a path to follow and I hope they encourage your to look further in this direction. Always consult your health care professional before using any supplement.
http://stuttersense.blogspot.com/2014/08/these-factors-reduce-your-thiamine.html
https://www.krispin.com/magnes.html
https://www.eonutrition.co.uk/post/when-sibo-ibs-constipation-are-just-unrecognized-thiamine-deficiency
https://www.eonutrition.co.uk/post/thiamine-deficiency-a-major-cause-of-sibo

I had this problem due (plus diverticulosis).
Diet with fibres (beets are great for me, also a bit of psyllium at breakfast.)
Five glasses of water apart of other liquids
Miralax or similar in the morning before breakfast.
Chew very well, specially meats.
Avoid white bread, cakes etc., chocolate
And I went to a pelvic physiotherapist who gave me exercises for the muscles that control the rectum, etc. Marvellous.

Took a dose yesterday with probiotic, Kimchi. Still have loose stools today. Have you or anyone else had luck with Kimchi for constipation? How often to take, dosage? Thanks

Also started with a dose of magnesium oxide. Says to take 500 mg three times a day, but with the Kimchi I only took two doses. Per above its a good thing. Having loose stools most of today. Not sure if it was the mag oxide, the Kimchi or combination of both. Going back to miralax 1/2 dose and a little mag citrate which my system is used to.

New here. Having constipation most every week. I had a terrible bout of diverticulitis. Still trying to recover after several weeks. Dr. prescribed Linzess. It has only been 1 week since I started taking it, but i cannot imagine having to live like this rest of life. Linzess takes 2 hours to start working, then diarrea for 2 to 4 hours. Will I ever go back to "normal?