Suggest Treatment For Brain Aneurysm

Hi I m asking for my sister who is 45 years old. She is a non-smoker and rarely drinks. About 7 years ago she did have a type of brain aneurysm that had to be operated on and has since fully recovered from that. Over this past winter, and for the last 4 or so months, she has had some sudden and persistent symptoms. She also has been to a few doctors and had blood work done to rule out certain causes. She thought she had MS, lyme disease or thyroid imbalance. All blood work came back normal. She has daily pain in her legs and feet, tingling and fatigue. This has not gone away. She is now depressed because of her inability to find out the cause. She has an otherwise healthy appetite and no issues with breathing, pain in abdomen, or headaches. She is very discouraged