water stain on ceiling 22

https://star-wiki.win/index.php/How_to_Diagnose_a_Ceiling_Leak_From_AC_vs._a_Roof_Leak

A water stain on the ceiling has spread into a soft, brownish circle, like a tea ring left overnight. It started as a tiny speck near the corner, but after the last big storm, it grew wider and more defined. The plaster feels slightly damp to the touch, and a faint musty smell lingers in the room. I keep meaning to call a roofer, but for now, it's just another thing on the to-do list.