Sickness, pain, and death are all results of a fallen world due to sin (Genesis 3:16-19). Followers of Christ are not exempt from the consequences of sin (Romans 8:22-23).
If God were to heal every sickness, ailment, pain and discomfort, there would no longer be something called death. God tells us that our bodies (along with our physical strength) will fade, but there is something beautiful about this story - if we are followers of Christ, we WILL receive healing when we see Jesus, and we WILL receive glorified bodies and dwell in heaven, where there is no pain or sickness, crying or sin (Revelation 21), and that is a promise from God.
With all of that said, let's make sure we remember and celebrate that God does still heal and perform miracles - I've seen many in my lifetime through friend & family situations. God heals to show His glory and create a testimony as to His greatness. But God can also show us His glory and greatness through suffering and hardships - it reveals an intimacy with God that no other situation can manifest (Job 42:5 - "My ears have heard of You, but now I have seen You."). God shapes us into His own image when we allow Him to work through the rough times in life. We learn patience, perseverance, trust, peace, hope in God...(we can keep the list running)...all through hardships (Romans 5:3-4 - "We also rejoice in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope. And hope does not disappoint us.").
I don't know about you, but the times that have been the hardest in my life have been the times that I grow and blossom into the godly young lady God planned for me to be...but only through Christ's strength. I can also tell you I have developed a unique ministry from my situation. Suffering equips us to comfort others more effectively and with genuine compassion (2 Corinthians 1:3 - "[God] comforts us in all our troubles, so that we can comfort those in any trouble with the comfort we ourselves have received fom God.").
Are you going through a hard time in life and don't know why there isn't hope or peace? It can sometimes be hard to find that hope and peace even for a follower of Christ, but the Bible tells us that a true follower of Christ IS capable of accessing that hope through prayer....with time and perseverance IN PRAYER.
If you have never had a relationship with the Lord and would like to make that happen today, you need to pray to God and ask forgiveness for your wrong-doings (sin) and commit to turn completely from the things that cause you to sin. You need to know and believe that Jesus came to earth and died a cruel death on a cross in order to pay the cost for your sin. Even better - He was buried and rose again the 3rd day. Did you catch that? My Lord defeated the grave!!! When we decide to let God take over our lives by doing the things listed above, we enter into an amazing relationship with a Heavenly Savior. Because of His great love for us, He wants to know us intimately. He also saves those who believe from eternal death (hell), which means we spend eternity in heaven with Him.
There is hope, peace, and healing in Christ. The world wants us to believe that healing should be a complete/perfect and immediate result that benefits our comfort. Although God is capable of performing a miracle with an immediate and perfect result, it is not always His will. He does have your perfect interest at heart....your spiritual needs take precedence over the physical. And His love, grace and power will carry us - that is a promise (2 Corinthians 12:9 - "My grace is sufficient for you, for my strength is made perfect in weakness").