Slab leak under the bathroom, am I overreacting?

I noticed a damp patch on the floor near the bathroom and my first thought was that it’s just condensation, but it’s been there for days now and it’s getting bigger. I’m worried it’s a slab leak, which sounds expensive and disruptive, and I’ve been putting off calling anyone because I don’t want to hear bad news. A colleague told me to go to website and have a proper look at what’s involved before panicking, which was actually reassuring because it explained the warning signs. But I’d rather hear from real people. Has anyone dealt with a slab leak and how did it turn out? Was it as bad as you feared or was it something simpler? And how do you even tell the difference between a leak and just a bit of moisture? I’d rather know what I’m dealing with than keep staring at the floor and worrying.go to website