All Dogs go to Heaven
I am so sad for you.
I truly believe our pets have souls, I am positive they go to Heaven just like humans do. Animals even come through in psychic readings. (Like Crossing Over with John Edwards.) You may see him in dreams now and for sure he will be waiting for you when your time here is over. You will see him again.
Just in case, this may help. It helped me. When I lost my dog last year, we buried him at home. I cried for 3 days, then I gathered rock from fields, planted flowers, and made him a garden. It was like he and I were doing it together and it was a great comfort. We got a cobblestone from a garden center and had his name engraved on it for about $40. I had my son cut down a tree so his garden could have more light.
Maybe doing something like that for Midas will help. It could be a story or a poem or a kindness to another animal, whatever is part of you.