Hi i been noticing these pains that i never felt before. I dont wanna go to the hospital for hours if it isn t worth there time or mines and find out its something like gas. But it started on my left lower hip then to my right one towards my back. Now its the lower back and front of my lower stomach both sides. I started throwing up all night and felt like i had to go to the bathroom i was pushing and pushing and it hurt so bad then i was throwing up again all yellow stuff that didnt look normal. This has been going on for one full night and all day today. I thought it could be food poisoning but nobody else is sick here. Doc it felt like contractions every 15-25 mins it kept waking me up in so much pain. I slept in the bathroom most of the time then slept all day started burning up with sweats so bad then had chills on top of it. I just finally ate after 2 days and i feel the pain starting again. Question is can this be kidney stones? Or can it be cyst? Im so scared Doc im 35 in good health at least i think i am haha but this pain is just scarring me. I smoke cigarettes and i do take Xanax once a day.