Do I have dry socket?

I got my all four wisdom teeth out on Tuesday and I barely had any pain the past few days. I have been rinsing my mouth with salt water like they say to do, but because I have no pain I decided to drink from a straw yesterday. I could feel the stitches this morning, but when I ate something a few minutes ago I checked for them again and they weren't there. I know that they disolve, but I am afraid I might have swallowed them or they came out or something because I have pretty big holes in the back of my mouth that aren't bleeding or anything. I know that that would be normal if it was a few weeks after, but it's only been 4 days since I got them out. Is it possible to have dry socket even though I am not experiencing any pain?