General :: Galaxy S4 Won't Turn On - Keeps Buzzing Every 2 Seconds Have Tried Multiple Chargers

I woke up today to my phone being off, I tried turning it on, and it said low battery - I was able to use it for 10 seconds and then it died. So I tried charging it. It has been "charging" for two hours and now refuses to turn on. But now it constantly buzzes every two seconds. I have 3 chargers, so in case the one I was using was broken, I tried the others, same thing. What is going on?

Now before you say that THIS IS THE REASON! My phone was on the sofa and fell into my dog's water bowl, the second it fell I took it out and checked everything. The inside didn't even have a single drop in it. And the little cotton indicator hasn't changed colour. I have small hopes that this can be repaired.

I am just PRAYING that this isn't because of the water. I am always careful and handle my phones well. But the rare times they slip, they fall in the smallest spaces with water in them. Example, my past phone was tipped from the nightstand and fell perfectly into a cup of water that was on the floor, that was JUST big enough to fit the phone. Same thing with the water bowl, out of ALL the spaces my phone could fall on the floor, it falls right into a tiny space of water...