Helpful websites to find out virus?

I have be sick for 4 months, and my test results come up negative for everything. Is within a website where I can in recent times type in my symptoms and see what illnesses come up? My doctors don't know what's wrong any.Helpful websites to find out virus?
go to webmd.com they own a symptom checker link
Type your symptoms and find an answer?
There are no good websites that can do it. Ask your doctor - and while at hand are good and impossible doctors (that's why it's good to find 2nd opinion), they can do it a lot better than computer. Computers deduce yes/no or black/white while many symptoms are contained by gray area
I do not know of any websites that set aside you a diagnosis by entering symptoms, however, WebMD.com does have a symptom foot indication of possible problems--link provided.
You did not say what your symptoms be, but your illness may be environmental. Consider eliminate soft drinks from your diet, aspartame(NutraSweet), check the soaps you use for body washing/dish cleaning go next to something mild, eliminate freeze dried products, do away with frozen prepared meals, remove foods with MSG, do not microwave anything within Styrofoam or plastic, check the air filter in your house, exterminate deodorizers that are not natural products, remove processed meats. If you put anything on your body, perfume or body spray and etc. consider making a translate or eliminating the product.
Also, generate sure you are sleeping properly, depletion of oxygen while sleeping causes problems that see in lab assessment.
You don't have do adjectives of these at once, but try a few for about three months and see if you own any improvements.
I wish you the best.