I was driving home today and suddenly when I breath in I have horrible pain in the middle of my back and a nasty taste in my mouth, came home took an asprin and laid down.  Hours later the symptoms are still there. Hurts more when I take a deep breath
HelloLooking to your case it seems to that you are taking aspirin since long time.it can cause gastritis. Your symptoms are of gastritis.Don't take aspirin if not needed. Have any proton pump inhibitor for gastritis and take lots of fluids orally. Avoid alcohol and spicy foods.