Before I lost all my weight I never felt this, but a couple of months ago I was lying

flat on my back and had my hand on my sternum and felt a knot on the left side (where it goes up into a V between the breasts). There isn't one on the right side ... does anyone else have this?

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.