I was in the emergency room last night because I havent been able to pee much and was having severe nausea and stomach pain that doubled me over. They said I have a bladder infection, after I got home I started peeing blood. I'm a 29 y/o female and I have low thyroid but am otherwise healthy, although I do have a history of kidney stones and a family history of kidney problems. Today I started having small blood clots come out and pain in my back where I normally get pain from kidney stones. I also looked at my arm about an hour ago and found 3 medium sized spots that look like a bruise/blood clot under the skin. Should I be concerned or just keep taking my medicine and try to rest?