Coolant leak approximately underneath the middle rear floor board,

What is your question?

2011 Cadillac CTS Base coolant leak: I can see the leak toward the back middle of vehicle, my vehicle overheated while in line at fast food restaurant, checked the coolant immediately added coolant thinking I was low on coolant, then I noticed the next day coolant leak under my vehicle, checked all the hoses up front, I flushed the radiator added coolant repair for leaks, I could see the leak was coming toward the rear (approximately right under the rear floor board of my vehicle, couldn’t tell if there’s a hose where the leak was coming from

How long has your 2011 Cadillac CTS had this problem?

Past few days