What could this be? Stomach pain for the past four days?

Hey, I've had a stomach ache below my belly button for four days now. It's a pulling pain, sometimes a stabbing pain, and it comes and goes. I also have frequent bowel movements and stomach noises. Sometimes the pain goes from the middle to the left of my ribs. The pain isn't particularly severe, it's more annoying and scares me. I've also been suffering from anxiety and panic disorder for two years, which means constant stress 24/7, and I've noticed that when I get upset, scared, or angry, the pain gets worse or sometimes starts. Could it be peritonitis or appendicitis? For every illness it says that you feel sick or have a fever, but I don't have either.

Or could it be irritable bowel syndrome?

Does anyone know anything about this or have had something similar?

Lg