Becka, I just went through that with my husband this past summer. He had CT scans, several MRI's and a spinal tap. At first the doctor thought my DH had an aneurism, and sent us straight to the ER for a CT scan. I really believe if your DH's doctor thought that's what it was, he would never have sent him home. Please try and relax. He's going to need you to be strong. I know that's easier said than done because I vividly remember the overwhelming feeling of panic and fear of the unknown. PLEASE PM me if you need to vent or have any questions.