Have no idea why you were downvoted. That's true of most conditions (if it weren't, getting a correct diagnosis would be a straightforward manner!). Some sympt

Have no idea why you were downvoted. That's true of most conditions (if it weren't, getting a correct diagnosis would be a straightforward manner!). Some symptoms are necessary (but not sufficient) conditions; some are sufficient (but not necessary). And sometimes you can only be sure about having condition X because the treatment for condition X makes your health improve.