You should try to get some community service on your application. It does not need to be clinical but it shows a willingness to be of service to those in need. Of course, being a home health aide is service and for what you're paid, you might be considered someone who is of service to others (the military are paid but that is also considered service, ditto Teach For America).
Shadowing shows you what doctors do all day including what they do when they are not physically with the patient (what happens behind the scenes). You need that given that you are caring for patients outside of a setting where physicians are employed. Start with the physician(s) who care for the person you are a care provider for and ask for referrals to other physicians if the first answer is "no". Point out that you have HIPAA training and all that through your job so you know "the rules".