Is this my last breath?

The pain I feel within grows stronger each day. But from the outside you'd never tell that I'm suffering. I may put on a brave face and a smile, if only you could see what it was like in this tired mind of mine. The pain and hurt seep through my eyes when no one is around. The world seems so dark right now and I'm not sure if I'll get through but I will still put up a fight. It may be the last fight but at least then I can say I fought until the very last breath.