is my roof leaking

https://wiki-planet.win/index.php/How_to_Tell_If_It%27s_a_Roof_Leak_or_Something_Else_on_Your_Ceiling

I keep noticing a wet spot on the ceiling near the chimney, and after the last storm, there was a small puddle on the floor. I'm starting to worry my roof might be leaking, especially since the shingles look a bit worn. I should probably get up there with a flashlight and look for any gaps or damage before it gets worse.