God has your best interests at heart 

The things that we believe are either empowering us or limiting us. As a man thinks in his heart, so is he (Proverbs 23:7). Your predominant experience is really just the fruit of the seeds of your predominant thoughts and beliefs. Successful living starts with successful thinking.
 
…God is love. [He is the originator of love, and it is an enduring attribute of His nature.]1 John 4:8 Amplified Bible (AMP)

Not believing that God has your best interests at heart is limiting you. When you believe that sometimes God will put sickness on you (something that is evil and the result of the fall of mankind) for some greater purpose or to bring Him glory, it will limit you from receiving healing. You need a revelation of God’s true nature – He isn’t twisted; He is love! Love has your best interests at heart. Love doesn’t want you to suffer. Love wants you free from pain and living in abundance. Your experience of God’s love for you is limited by your distorted view of Him. When we look at Jesus we see God’s true nature revealed – Jesus is the exact representation of God (Hebrews 1:3). That means that if we see Jesus, we see the Father. Nowhere in the Bible can you see Jesus refusing to heal anyone. Nowhere in the Bible do you see Jesus putting sickness or suffering on anyone. No! God is love and He demonstrated His love through Jesus. Love has provided for your full healing and has redeemed you from suffering (but not persecution for your faith – 2 Timothy 3:12). Love wants you to succeed and has your best interests at heart.