I have a really nasty taste in my mouth. Has been longer than a week. Chew gum mint candy all help but returns immediately. If I drink something with fizz it burns and is uncomfortable . Brush my teeth regularly and have had recent Dental appoints. Final appointment for dental implants. No change in medicine. Have rheumatoid and osteo Arthritis . Currently having lots of muscle and joint pain .The muscle pain is severe and only relief is to sit or lay down. Getting up from a sitting position is really painful and dreaded.