Sometimes the answer (from God) Is No.  No matter how badly we want the answer to be yes.  We don’t understand why we suffer.  Often there is just silence.  And other times it is a definite No.  Otherwise He would be just this person who we just ask to do this or that.  His purposes are beyond our understanding.  He does choose to heal.  But not in every instance.  Even Paul prayed that God take away his ‘thorn in his flesh’.  And He didn’t.  If you ask the question why, there is often no answer.  And if you keep asking that question, it will only torment you.  Sometimes the answer from God is no, no matter how fervently you pray.