This morning I woke up to my belly feeling rock hard on the lower left side. As soon as I touched it, it softened so I couldn't feel how big it was, but I'm guessing maybe as big as my palm. This has happened a few more times through the morning, and it always softens as soon as I touch it. It's not painful, I can just feel how hard it is.
Anyone else had this, and is it something to be concerned about?