After her building was engulfed in a massive fire, Estella d…

After her building was engulfed in a massive fire, Estella developed a severe fear of flames and smoke. She experiences panic attacks when she hears fire alarms or sees fire on television, and she has recurring nightmares about being trapped in a fire. She refuses to attend campfires or events with fireworks. What is the most likely diagnosis for Estella’s condition?