My biggest fear. in Sclero Forums (MAIN) Posted April 29, 2018 The only thing I can say to all of you is try to stay positive and make the most out of what time you have left, however long you think that may be. Of course, we all have hopes and fears and for most of us, it is the fear of the speed of progression. That's one of my biggest worries, but however fast or slow it may be, I am trying to keep as fit as I can, constantly pushing myself against the odds and taking the time to rest up when I need to. One of my biggest problems is that nobody I know seems to think that there is anything seriously wrong with me and has no idea of the constant pain I am hiding.