I don't know what's wrong wiht me but I am in a lot of pain and it's awful

I have a feeling like something is wedged in my throat that just won't move. It has been like this since last night.
The last time this happened I assumed it was from taking my antidepressants without food and it was gone within three hours, now it's still here and I ate last night.

It hurts in the base of my throat where my collarbone is and right down to my sternum. I can feel it in my right shoulderblade as well.

It is making me feel really sick and no matter how much I have drunk or eaten to try and push it out it's not working. I just want it to go away. Can't get into the GP til monday...