4. Doctors know very little about parasites and many believe if you think you have them, you are suffering with a delusional syndrome - poor doctors. Even Infectious Disease and Tropical Medicine doctors will have a hard time unless you suffer with some overt symptom. I walked around for many years chronically ill and saw many physicians and alternative people, not one of those people even suggested parasites as being the problem. Many erroneously believe that Americans cannot get parasites (unless you travel outside the country) which makes no sense to me. So don't be discouraged if they don't believe you.