Hi.
Thanks for your query.
Read the history and understood your problem.
You have combined symptoms which look unrelated but if considered together namely the pain in the left lower abdomen radiating to the lower rib area, chest, arm pit, for 2 weeks and now
radiation to the inner left thigh and left knee back, it can be due to spinal problem .
I would advise you to have the following:
Consult a General Surgeon for a very typical presentation, clinical evaluation and physical examination to decide whether these are different problems or sue to a single problem having varied presentation. This will help to get the investigations done:
The first should be EKG as you have chest and armpit pain. rule out the cardiac problem first.
MRI of the whole spine from the cervical to the lumbar spine
CT scan of the abdomen
investigations of the blood, urine and stool.
The final diagnosis hence made will help to formulate the proper treatment.