My mother is 85 years old. In July this year she had a heart attack, cardiac cath revealed a blocked over 90 percent artery which was opened, stent and she is on several medication including hypertension, diabetes. She complains of lightheadedness , blood pressure rises, shortness of breath and she feels her legs are giving out, can t hold her, she has chronic constipation, feels bloated and contributes her shortness of breath to the lack of bowel movement. She uses walker all the time now, doesn t want to be alone especially at night. What can I do to help her