Shall we accept good from God, and not trouble?”
(Job 2:10)

I think I could write volumes of comments on this scripture, but basically, it's pretty simple.  God does not promise an easy life to anyone.  Smooth sailing is not part of His plan.  We will, at some point, have illnesses, mental and physical pain, loss of loved ones, and many other difficult, if not, horrible circumstances.  What He does promise is to love, help, and support us through all of these troubles.