I can't completely relate because I've always known what I needed to cry about but in my mid to late 40s I went through a period of several years of crying hours every single day. I know that feeling when you're on the verge of crying. It always gave me a strong pressure in the throat. The only thing that ever made that go away was to just let it out, to cry. It just builds and builds and builds until the pressure is too much. Crying was the most healing part of my life.