Companion Care Needed For Myself In Phoenix

About who needs care: Am 81 and independent during daytime. Have BP problems currently and get scared at night that there is no one to call for help or ideas. I would like to help myself but don't know how. I am not worried about security as home has alert system. My concern is health. Thank you About the care needs: I have been outgoing throughout my professional life. I would just need a caring person who would know what to do and share information. I am not knowledgable about social services. Services needed include: companionship.