HI.
You have got 2 questions- one pertaining to orange color urine and the other is about
severe pain in abdomen.
The causes of Orange color urine in your case may be due to:: Concentration of the urine as you had pain in abdomen s,
vomiting so got dehydrated; and now you are taking very less water as you say only 500 to 800 ml. In some cases this color can be due to adulteration with the food color which they use in Chicken curry.
Another question about your pain in abdomen, vomiting look to be due to the contents of the chicken curry in the form of the color they use. It is possible that you got a perforation of the
stomach ulcer which got closed and healed - fortunately.
Get the following investigations done:
Blood- routine, liver function tests, Kidney function tests, sugar and all relevant as per your Doctors advise.
Urine- routine, microscopy, bile salts and pigments, culture and sensitivity.
Standing X-ray of the abdomen,
ultrasonography of the abdomen.
Upper GI
Endoscopy to rule out stomach ulcer or cancer.
The treatment will depend upon the investigations and clinical examination.