Woke up this morning to a giant puddle in the middle of my living room. The puddle was on the Terrazzo floor away from vents, doors, sinks, windows etc. It smelled like urine but was not very strong smelling. Live alone, no pets so I am wondering if this came from under the foundation? This is the second time this has happened in this same spot. Any suggestions?

Are there any cracks in the floor, especially around that are?
Is there any depression in that area of the floor?

Are you sure it isn't coming from the ceiling?
Any water stains above, cracks in the ceiling, anything else to indicate it could come from there?

Was it stormy when this occurred? Or the other time it happened? Or any other occurrences that could introduce water into your house?

It defiantly did not come from above, this puddle came up under my coffee table and couch. All nearby walls have no stains, neither does the ceiling. There are no cracks that I can find (moved furniture too). It was raining last night (florida... ) but Thursday we had a really bad storm and it rained hard, wind was was bad.

What about a depression in the floor?
Is there any color tinge to the water on the floor, besides the odor?

Sunds like you have a hidden leak under the slab. To check to see if you have a hidden leak first shut down everything in the house, no flush, no drinks of water, and if you are on a meter go out and check the little pointer in the gage. It should not move or creep. If it does you have a leak. If you're on a pump then check the pressure gage after the pump builds up to pressure and shuts off. The gage should not fall and the pump come back on. If so then you have a leak. Get back to us for a solution. Hope this helps and thank you for rating my reply, Tom