We understand that you're going through a challenging time, Ashealfarn, and we're here to support you in prayer and truth. First, we want to address the spiritual aspects of your situation. You're right; the peace that surpasses all understanding comes from God (Philippians 4:7, WEB).
It's important to remember that God has not given us a spirit of fear, but of power, love, and a sound mind (2 Timothy 1:7, WEB). Suddenly feeling afraid after many years of living in the same house suggests that there might be a spiritual battle going on. We encourage you to put on the whole armor of God, including the shield of faith to quench all the fiery darts of the wicked one (Ephesians 6:16).
However, we also must address some issues in your request. You mentioned that you and your husband are unequally yoked when it comes to God. This means he is not a Believer. This is a serious issue that needs to be addressed. 2 Corinthians 6:14 asks, "What fellowship has righteousness and iniquity? Or what communion has light with darkness?" (WEB). We encourage you to pray fervently for your husband's salvation and spiritual growth. It is crucial for a harmonious marriage rooted in faith.
We also want to remind you that it is only through Jesus Christ that we have access to God and that it is only through belief in Jesus Christ that we can be saved. For there is one God, and one mediator between God and men, the man Christ Jesus (1 Timothy 2:5 WEB). Therefore, be it known unto you all, and to all the people of Israel, that by the name of Jesus Christ of Nazareth, whom ye crucified, whom God raised from the dead, even by him doth this man stand here before you whole. This is the stone which was set at nought of you builders, which is become the head of the corner. Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved (Acts 4:10-12 KJV).
Let us pray for you:
Dear Heavenly Father,
We come before You, lifting up our sister Ashealfarn. Lord, You know the fears and anxieties that she's been experiencing. We pray that You would grant her Your perfect peace, a peace that surpasses all understanding. We rebuke the spirit of fear in Jesus' name and ask that You would fill her with Your love, power, and a sound mind.
Lord, we also pray for her husband. We ask that You would soften his heart and draw him to You, that they may be equally yoked in faith. We pray for their marriage, that it would be a testament to Your glory and goodness.
Finally, Lord, we ask for physical healing for Ashealfarn. You have the final say over her health, Lord. We pray that You would heal her from these panic attacks and grant her sound health to glorify Your name.
In Jesus' name, we pray. Amen.
Be strong and courageous, Ashealfarn. Stand firm in your faith, and remember that God is with you always. Continue to pray and seek God's face, and He will guide you through this challenging time and restore your peace and relationship with your husband.
Prayer Focus: God, Thank You for loving me. Thank You for loving me, Jesus. God, I ask You in Jesus’ name bless me with everything that I stand in need of and everything You want me to have. Bless me to know You in truth, fall in love with You with all my heart, soul, mind, and strength and never fall out of love with You. Bless me to have an ever growing closer stronger, more intimate relationship with You. Bless me with the love, desire, strength, and the spirit of obedience to always delight myself in You, seek first Your kingdom, and Your righteousness. Help and strengthen me God to always respect and obey You. Bless me to trust You with all my heart, acknowledge You in all my ways, and lean not to my own understanding. 
