What is the best diagnosis test for c difficle and how to know if I have it ?

Hi , I am having a mild flare. I hv 2-3 washroom visits when I dont hv to go out from house or when I am not stressed but when I hv to go out or I hv an exam or interview the washroom visits increases to 5-6 times at that time
No blood/very less mucuos but urgency and not able to hold stool.I also sometimes(once a week) get some sharp pain in my left down side where the end part of colon is. I get mild fever every 3-4 months . Sometimes ehile passing gas I get chills .I feel a little fatigued sometimes. I hv very bad smell when I pass gas it is like rotten eggs . I hv this smell in my gas for the past 1-1.5 years. I dont have weight loss issues , as I am able to gain weight and I am 72 kgs currently. Currently I am on mesalamine , azathioprine , folic acid , multivitamin .
I am not benefiting very well in terms of urgency and controlling of stools which is my main concern as it prevents me from getting out of my house and going for some work/college.
I have read a lot about c difficle , so can someone tell me does my symptoms look like C difficle.
Tell me what symptoms do C difficle postive people have? I think it is C difficle that is not allowing to heal me properly. I got a colonoscopy done a month before and found mild inflamation till sigmoid , rest whole colon was healthy . .
Can someone also tell me the best and most accurate diagnosis test for C difficle if u suspect I hv C difficle . I want to get it done.

From Mayo Clinic:

Diagnosis
Doctors often suspect C. difficile in anyone who has diarrhea and who has other risk factors for C. difficile. In such cases, doctors are likely to order one or more of the following tests.

Stool tests
Toxins produced by C. difficile bacteria can usually be detected in a sample of your stool. Several main types of lab tests exist, and they include:

Polymerase chain reaction. This sensitive molecular test can rapidly detect the C. difficile toxin B gene in a stool sample and is highly accurate.
GDH/EIA. Some hospitals use a glutamate dehydrogenase (GDH) test in conjunction with an enzyme immunoassay (EIA) test. GDH is a very sensitive assay and can accurately rule out the presence of C. difficile in stool samples.
Enzyme immunoassay. The enzyme immunoassay (EIA) test is faster than other tests but isn't sensitive enough to detect many infections and has a higher rate of falsely normal results. This is typically not the only test used.
Cell cytotoxicity assay. A cytotoxicity test looks for the effects of the C. difficile toxin on human cells grown in a culture. This type of test is sensitive, but it is less widely available, is more cumbersome to do and requires 24 to 48 hours for test results. It's typically used in research settings.
Testing for C. difficile is unnecessary if you're not having diarrhea or watery stools, and isn't helpful for follow-up treatment. If you aren't having diarrhea, stool shouldn't be tested for C. difficile.

Colon examination
In rare instances, to help confirm a diagnosis of C. difficile infection and look for alternative causes of your symptoms, your doctor may examine the inside of your colon. This test (flexible sigmoidoscopy or colonoscopy) involves inserting a flexible tube with a small camera on one end into your colon to look for areas of inflammation and pseudomembranes.

Imaging tests
If your doctor is concerned about possible complications of C. difficile, he or she may order an abdominal X-ray or a computerized tomography (CT) scan, which provides images of your colon. The scan can detect the presence of complications such as thickening of the colon wall, expansion of the bowel or, more rarely, a hole (perforation) in the lining of your colon.

The doctor doesn't do the test...he gets the results.
You can ask your GP?


q