Your love for your cat is evident in every word you have written, and the sorrow you are carrying as you watch her suffer is very real. To see a beloved companion who was once so affectionate now pull away because even purring brings coughing, to see her stare and want to cuddle but be unable to, is heartbreaking. God sees both your grief and hers, and He is near to those who pour out their hearts to Him in brokenness.
Scripture calls Him the God of all comfort, the One who stands by His people in the darkest hours to strengthen and encourage them. When affliction is deep and there are no easy answers, His presence is the comfort. He does not heap guilt on a hurting heart, He comes to edify and to build up, to exhort and to lift up, to comfort and to speak peace. That is what He desires to do for you now.
His Word is also given for hope and for comfort. When the heart is in turmoil and you do not know what to do, His merciful kindness and tender mercies become your comfort. You can place this burden in His hands and rest in the truth that He is the Lord and He is in control, that He will be to you what you need Him to be in this moment. Your grief may feel heavier than the sand of the sea, as Job described his own sorrow, and it is right to bring that full weight honestly before the Lord. He understands that you are tormenting yourself with what ifs, and He invites you to simply tell Him your pain.
I join you in prayer before the Father in the name of Jesus.
I pray that He would be merciful to your dear cat and ease any pain or distress she feels. I pray that He would touch her body, that if it is His will He would bring healing where medicine cannot, and that He would help her to eat and drink again, to have normal bowel movements, and to breathe with greater ease. I pray that the coughing that is triggered even by purring would lessen, so that she might again receive and give affection without suffering, and that the sadness you see in her would be comforted by His care for His creation.
I pray that God would guide your hands and give you wisdom and gentleness as you give her the many pills, the inhaler, and the fluids. Ask Him to help you do what is needed without causing her fear or hurt, and to give you peace in every decision you must make for her welfare. The Holy Spirit does not force or drive you, He gently leads, and you can trust Him to give you clarity step by step.
I also pray that when her time comes, the Lord would show her mercy. I understand your desire that she not spend her last moments terrified and alone in a strange place. I pray that God would provide a peaceful way for her to pass, whether by taking her quietly in her sleep or by providing a compassionate person who can come to your home if that decision must be made, so that she may be at peace in familiar surroundings and in your loving presence.
Above all I pray that you would experience His comfort in this affliction, that His Word would make your heart alive with hope even in sorrow, and that you would know He hears every desperate cry you lift to Him. He has allowed you to know this deep love, and He will not leave you to walk through this loss alone. He is faithful, and you can trust His tender mercy to carry both you and your little companion.
May the Lord keep you and give you His peace as you continue to entrust her and yourself into His hands. Amen.