To find the reasons and warning signs of a panic, what should I observe and record?

A panic (a meltdown) tends to happen when too much stimulation, fatigue, or discomfort that can't be put into words exceeds the child's limit—it isn't done on purpose. There are usually triggers and warning signs. Jotting down briefly "when, where, and what happened just before (the trigger)," "what they looked like," and "what happened after (the response and result)" reveals patterns. Noticing early signs (voice getting louder, body stiffening, leaving the spot) lets you prevent it—moving to a quiet place, reducing stimulation. Note that even appearing to smile can be the flip side of tension or confusion (a defense reaction), so it's important not to judge by surface appearance alone. Sound, crowds, schedule changes, hunger, and fatigue are often shared triggers, and sharing the record with the preschool/school and professionals makes it easier to plan responses.