Anybody have experience of a hard lump, about the size of a marble in the abdomen sort of just above and behind the belly button? Google suggests a hernia maybe? It’s not painful at all and I’ve no idea how long I’ve had it, discovered it randomly a couple of months ago and forgot about it, noticed it again yesterday and now unsure if it warrants a GP appt or not, given it’s not bothering me in the slightest. Any opinions?