i recently was involved in a head on collision (2 months). I have constant headachs, mild concussion, small pupils, low back pain L4 and below. I m 73 yrs, female and in good health. Never smoked, drank, used drugs, used natural means to health, no fast foods, few restaurants. In a recent MRI I was told a had brain loss volumn which could involve a heart condition not to mention dementia, etc. How do I stop and reverse this condition. I am also the sole care giver for my husband and have been for 14 years. What now?