Knowing or not knowing

I do not know which is worse. Having Multiple Sclerosis or knowing there might be something wrong and not knowing what it is. When you do not know at least you can hope they will find something small and you can just take a pill that will fix you. Of coarse when you do not know then it is always in the back of your mind eating away at you. Having MS can be rough but I have to say there can be a lot worse diseases I could have.