My stomach has been rumbling all day long lately. Is there something wrong?

My stomach has been rumbling all day long lately, so I'm worried.

The sound comes from morning until night, really all day long. It continues right up until I fall asleep, and I can even hear gurgling sounds when I wake up in the morning.

I don't even eat anything right before going to sleep, so is it normal for my intestines to move like this?

I recently started taking probiotics that are supposed to be good for constipation, but even so, I have to tell if the gurgling sound I hear all day long is so severe because the probiotics are working too well, or if it is a side effect.

I'm wondering if I should stop for a while or switch to something else.