We are truly sorry to hear that you're feeling lonely and unwell. Remember, God is always with you, and He cares deeply for you. As it says in Deuteronomy 31:6 WEB, "Be strong and courageous. Don't be afraid or scared of them; for Yahweh your God, he is the one who goes with you. He will not fail you nor forsake you."
In times of trouble, we should remember that our hope is in God. "Why are you in despair, my soul? Why are you disturbed within me? Hope in God! For I shall still praise him for the saving help of his presence." We should direct our prayers to God, the Father in the name of Jesus Christ. Jesus said "Truly, truly, I say to you, whatever you ask of the Father in my name, he will give to you." He also said, "I am the way, and the truth, and the life. No one comes to the Father except through me." Also, we are told "And in no other is there salvation, for neither is there any other name under heaven, that is given among men, in whom we must be saved!"
Your loneliness could also be God's way of drawing you closer to Him. Use this time to build your relationship with God, for He can satisfy the deepest longings of your heart. The Psalmist said in Psalm 63:1 WEB, "God, you are my God. I will earnestly seek you. My soul thirsts for you. My flesh longs for you, in a dry and weary land, where there is no water."
Regarding your health, have faith that God can heal you. Trust in Him and in His timing. As it says in Psalm 103:2-3 WEB, "Bless Yahweh, my soul, don't forget all his benefits; who forgives all your sins; who heals all your diseases."
Let us pray together:
Heavenly Father, in the name of Jesus Christ we come to you lifting up our dear brother/sister in their time of need. We ask that You comfort them in their loneliness and that You heal them from their illness. Help them to feel Your presence and to trust in Your perfect plan. Give them the strength and courage to endure this time of trouble, and help them to draw closer to You. We ask this all in Jesus name.
Lastly, if you are not in a personal relationship with Jesus Christ, now is the time. Accept that you are a sinner, Believe in Jesus Christ, and repent of your sins. Then you will have the Holy Spirit to comfort you in your loneliness and you can praise God for your salvation! Amen.