question on rib discomfort

Hello. I am new here and have some different health questions, but I'll start here. I notice that after I walk sometimes that I get a mild spasm feeling only in my right side in my rib area. When I wake up in the morning, I notice that there is some mild pain... again, only on the right side. I do have irritable bowel issues along with upper back, neck, and low back issues. Any clues as to why this pain occurs? Sometimes when I reach to the left for something, it can really pull on the ribs and hurt but that comes and goes. Could it be trapped gas perhaps?

Thanks