<s>[INST] Went to ER in servery pain in my left flank and nausea had CT scan and they found a 3mm kidney stone been drinking water for four days first couple days was hard to keep down still have nausea yesterday felt alright no pain in kidneys but last night started again and nauseas and pain not as bad as when if first started I was given oxicodone and flomax oh and to top it off I have no insurance my question is should i go back to er or wait it out chills sometime but no fever its like the pain makes me chiver very dark urine even though drinking as much as i can hold down and little floating tissue has shown up in my urine [/INST] Hi, You have been diagnosed with kidney stone which is 3 mm in size and I guess they have found no other pathology. Kidney stone explains your pain, nausea and dark urine which means blood in your urine. The floating tissue in your urine is most likely blood clot.  3 mm stone usually pass spontaneously and only thing you need to do is take good quantity of water and symptomatic treatment for pain. However, if pain and dark urine persists you need to consult your urologist to confirm the status of kidney stone and to rule out other pathology. </s>