Amy, A 25 Year-old Female Presents To The Primary Care

Amy, a 25 year-old female presents to the primary care clinic for an initial visit. She presents with several concerns. First, she is concerned because she was told that she possibly had gallstones by her primary care provider. However, medication was given and follow-up test were not done. She has had several bouts of abdominal pain and some dyspepsia, but no nausea, vomiting or any other gastrointestinal symptoms. She points to an area in her abdomen that has been painful, especially when she eats high-fat foods.
Her second complaint is weight gain. Her diet has not changed over the past few years; however she has noticed a change in the way her clothes fit as well a 15-pound increae in hwe weight over the ast year. She has also had irregular menses. She often "skips months", and she reports 7 cycles of menstruation over the past year. When she does have her period, " it lasts for over 2 weeks." At one point she did not have a period for 3 months, and she thought she might be pregnant.
Her review of symptoms (ROS) reveals no dzziness, no headache, no problems with her vision, no ringing in her ears; she is not short of breath. She has no complaints of cougn, no palpitations, no chest pain. She has no genitourinary complaints. She has no musculoskeletal complaints. She has no weakness, no paresthesia, and no numbness or tingling of the extremities.
PMH: non contributory.
PSH: none
FMH: Mother has HTN. Father died at age 60 due to prostate cancer. She has one sister that is alive and well.
SH: no tobacco, alcohol or substance abuse. She is enrolled in college and this is her final year.
Medications: Prevacid
Allergies: none
Based on current literature,
Which diagnostic or imaging studies should be considered to assist with or confirm her diagnosis and why?
What are the differential diagnosis? Please include ICD-10 codes.
What is the most likely diagnosis and why?
Based on the most likely diagnosis you have chosen, what if the patient was trying to conceive?
What is your plan of care?