Do intense fear, bodily disturbance, and loss of appetite and joy of life upon hearing warplanes in a war-torn country count as panic attacks, and is travel the only solution for these symptoms?

Nothing will afflict you except what Allah has decreed for you. Therefore, put your trust in Him, increase your remembrance of Him, recite His words, and persevere in performing the obligatory and supererogatory prayers so that your faith may increase and your heart may find peace. As for the symptoms mentioned, they are symptoms of panic disorder. Its treatment involves cognitive-behavioral therapy, relaxation and mindfulness exercises, and medication under the supervision of a specialized doctor.