My husband was diagnosed with mp last September and now found a new doctor who said he needed a blood test to show he truly had this disease. The blood test has come back negative. Now when we were in the hospital for same symptoms they told him he doesnt have it or maybe never did or maybe after being on meds it just wont show. They told him he no longer has diverticulitis or diverticulosis. They are trying to tell him they think he has severe ibs but are doing nothing to help.