Thanks for posting your query at DoctorSpring.com
I am Dr.R.K and I am pleased to assist you.
I went through your post about loose stools.
I also understand you had gallbladder surgery and a history of Crohn's disease.
With the information you have provided, I would say the following are the possible causes for the loose stool you have.
1. Bile induced diarrhea due to gallbladder. Since the reservoir for bile, the gallbaldder has been removed , excess bile flows the distal gut causing loose stool. It is usually self limiting. If it is very troublesome, then you can trt taking cholestyramine.
2. Flare up of Crohn's disease - You can get lab tests done ( CRP and ESR) to see if it is a flareup. You can continue with the same medications
3. Gut infection - Stool analysis may be done. C .difficile infection is common in those with IBD.
4. Sometimes IBS may be associated with IBD.
You can discuss with your doctor about these possibilities.
I hope that answers your question.
Let me know if I can assist you further.