Look at Job. Do you think Job had trust issues with God after he lost his sons, his wife, his health, and his livelihood? Yet, God allowed these things and ultimately did not give an answer to Job as to why. He just asked Job where was he when He created everything? And Job learned something for he said that he had only heard of the Lord but now has seen him. And he said the purpose of man is to fear God and keep his commandments. After this God restores Job.
If you think of our spiritual life with God as a relationship you could see that you could have dry spells like in any relationship. And sometimes God lets us go through difficulties. What does the Bible say about that? Suffering products perseverance, and perseverance produces character, and character produces hope and hope does not disappoint us, because God’s love has been poured into our hearts through the Holy Spirit who has been given to us.(Rom 5)