I agree you should contact surgeon about your pain symptoms and definitely the headache. I had the laparoscopic surgery also. I had intense pain after eating a very small meal after I returned home. The bike duct can swell up some after surgery and causes pain like before surgery. It will pass. My daughter was given a fatty meal by mistake in the hospital after her surgery and got very sick.
Pain in right side and chest could also be due to nerve irritation. Please contact your surgeon!!