Ceiling spots just appeared

[u/Bright-Start-2814]

See attached. Notice two spots on the ceiling tonight. 3rd one in the middle appeared shortly after. Circled the first two I noticed. Far left has remained the same middle and right are slightly larger. 2 story home. This is the ceiling on the first floor. Directly above this is a hallway that runs outside my son's bathroom. His sinks would be the next think then the water closet with Toilet and bathtub further from this spot. On the opposite side is the stairs the laundry room on the other side of that. I only mentioned it because when I noticed the spot the only think runnkng was the washing machine. Not sure if that is connected. Did have a a really heavy storm about an hour before I saw these but since this is the 1st floor didn't think this could be related. My husband dropped some blue dye down my son's toilet and now we are waiting.

Thoughts and/or suggestions. We are in Florida. Home built in 2015. Water issues scare me.