I have endometriosis (20 years now) I am experiencing sharp shooting pain on my left side shooting into my inner thigh, chills, gas pains, I feel like a have a bad UTI but after going to the doctor it s ruled out, it did show microscopic blood in urine which has happened before (from the endo?) I don t know if I should goto the er or just wait it out? The pain is on/off/on/off and when it hits it hurts so bad I feel like vomiting, it kept me up all night last night and is even more painful today