My husband is experiencing a bad taste in his mouth which leads into lack of appetite; he does eat 3 meals per day but has been losing weight. He feels off and always says he does not feel well. Episodes of dizziness . Blood presssure has been good. Has seen his primary doctor and his dentist . He uses dry mouth toothpaste and biotene with no change or relief. On Jan. 4th he had two Oxford Partial knee replacements and is in rehab 3 times per week. He is never sick and never complains and for over 3 months has been experiencing this. He has difficulty sleeping, seems lethargic and does not feel well.