### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My stomach hurts and my lower back hurts. If i eat any more food i will want to throw up. I couldnt sleep well last night due to the stomAch and lower back pains. Now i also cant poop. 2 years ago i had similar symptoms and was just very constipated from eating a lot of mac n cheese. However im concerned i might have an appendisitis because the stomach pain is now going towards my left groin area under my stomach though the pain isnt severe i have a feeling it can turn out to be. How do i tell and what should i do?

### output:

Hi ! As your pain is on the left side towards your left groin, one can not give much weightage to the diagnosis of appendicitis, as the pain of appendicitis is mostly on the right side of lower abdomen, which may radiate to the right groin in some atypical positions of the appendix. Left sided appendix is one of the rarest entity.] We can think of more common entity for pain on the left side of your stomach and lower back like colitis or food poisoning etc., as you give a history of eating outside food much. Also, as you are constipated obviously because of your dietary habits, you may be developing diverticulitis of sigmoid colon (a part of the colon) which can give rise to severe pain on the left side of abdomen. In my opinion, you should consult a gastroenterologist/ surgeon, who may decide on an ultrasound abdomen or a GI endoscopy apart from other routine investigations, depending on the clinical findings once food poisoning is excluded. Once you are treated and cured, please do not forget to modify your dietary habits like adding more of roughage and liquids in your diet. Wish you an early recovery.