I am 17, and I feel slight discomfort in my inner abdomen, right side.  When I lay down, I can feel like an organ, but no bulge is present.  I cough, slight discomfort, very little pain.  My general lower abdomen is also sore from sit ups.  I have not previously had surgery, yet the slight pain is coming from an area between my belly button and right hip, and up a tad.
Hi. Thanks for your query. Beautiful presentation of the symptoms by you. Pain from an area between belly button and right hip, and up a tad; discomfort in inner abdomen in right side, feeling of an organ on laying down, discomfort rises on coughing and soreness in the general abdomen. This is classical book-picture of appendicitis unless proved otherwise. I would advise you the following. Tests of blood, urine and stool. Ultrasonography of the abdomen and to be confirmed by CT scan if required. Clinical evaluation and physical examination by a General Surgeon;Appendectomy if confirmed with a course of an antibiotic, metronidazole and probiotics, symptomatic and supportive as for any other problems like Risperidone if nausea and vomiting and Paracetamol if fever or so. Do not take laxative, it is contraindicated.