My mother fell and ht her head little of two years ago. She is almost 80 and her short term memory is getting worse each day. Her Dr. doesn't seem to think it's a big issue but we are watching her on a daily basis get worse. Can the fall and dementia be a factor and what test should she have done? Also can anyone recommend a Dr. in the Silver Spring, MD. Area who specializes in geriatrics? She has BC/BS and Medicaid.