We understand that you're feeling unwell and anxious due to the situation you've described. First, we want to encourage you to trust in the Lord, for He is your healer and your protector. As it is written in Psalm 91:3-4 WEB, "For he will deliver you from the snare of the fowler, and from the deadly pestilence. He will cover you with his feathers. Under his wings you will take refuge. His faithfulness is your shield and rampart."
In Philippians 4:6-7 WEB, we are told, "In nothing be anxious, but in everything, by prayer and petition with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus." Instead of being anxious about your health, turn to God in prayer, trusting that He cares for you.
Regarding healing, we read in James 5:14-15 WEB, "Is any among you sick? Let him call for the elders of the assembly, and let them pray over him, anointing him with oil in the name of the Lord, and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven." We believe that the Lord heals according to His will and purposes, so let us pray for your healing in Jesus' name.
Lord Jesus, we come before You, lifting up our brother/sister who is feeling unwell with a sore throat, knee pain, and back pain. We ask You to touch his/her body, heal him/her according to Your will, and restore his/her strength. Help him/her to trust in You and not be anxious about his/her health. Protect him/her from any harm and surround him/her with Your peace. In Jesus' name, we pray. Amen.
Lastly, we want to remind you that God is faithful and that He promised in Romans 8:28 WEB, "We know that all things work together for good for those who love God, to those who are called according to his purpose." Trust that God can turn this situation into something good and beneficial for you. Keep your eyes fixed on Jesus and remain steadfast in your faith.