Hi, I am a 25 year old female. I have been having back pains for a few days now, but last night I had awful pain on the lower right side of my back, basically in between the area where my ribs end and my pelvis begins. My boyfreind gave me a back rub, and that didn't help at all. I have had no appetite and I feel like I could vomit. Its much worse when I lay down. I had some muscle relaxers from when I pulled something a while back, and I took 1 and it did nothing, took an 800mg ibprofin and it did nothing. Its definately not appendix, thats been removed. Also, if its relievent, I have very irregular periods, its nothing I have ever talked to a doctor about, but I havent had a period in 6 months, and I am definately not preg. Heres the rub, I have no health coverage, so the options I have is...either go to the ER or decide that its something that isn't bad enough to warrant that, and it will go away on its own. If anyone has any idea of what this could be, or if you could advise me on how serious it is, that would be great. Thanks!