<s>[INST] while grocery shopping today, I suddenly got a needle sharp pain in right side of back, It lasted only about 15 seconds. Later 5 hours while trying to sleep it started again. It is like sharp needles sticking in my back. I put ice pack on the spot and it seems to subside now. I also took 2 baby asperin. I had too much alchohol the day before and my liver counts are higher than they should be. What do you think? [/INST] Hello! Thank you for the query. Your symptoms can be caused by kidney stone, gallstones, pancreatitis or rib nerve neuralgia. Kidney stone usually gives sudden pain in the one side back which radiates to the lower abdomen and groin. Frequent urinating and pain while urinating appears. Gallstones or pancreatitis usually give abdominal pain which radiates to the back, nausea, vomiting associated with meals. Neuralgia gives sharp like needle pain which aggravates while moving the chest (breathing). It is advisable at your case to have abdominal ultrasound, full blood work, liver tests (AST, ALT,GTP), amylase, urine amylase, bilirubin, urinalysis. Hope this will help. Regards. </s>