This was my experience and what was recommended by my doctor:

After successful Vancomycin treatment I developed temporary post-infectious IBS. I followed the FODMAP diet for a few weeks which helped. My doctor recommended that I take the following probiotics: Florastor and Visbiome. The probiotics helped me soooo much, noticeable improvement within a couple days. After a couple weeks I slowly started to re-introduce non-FODMAP foods to my diet.

You might want to read the book “Let’s Talk Sh!t” by Hazan, Ellsworth & Baptist. Also visit Dr. Sabine Hazan’s lab’s website: ProgenaBiome.com for testing microbiome testing info.

Another great source of info is the Peggy Lillis Foundation at CDiff.org

Prayers going up that you are healed.