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Dear Dr. Roach: My lab results showed my potassium level was 5.4 mmol/L. My primary care doctor does not seem concerned at all with this reading.

Dear Dr. Roach: I am a 64-year-old woman in good health, but after years at a desk I have upper back and shoulder flexibility issues. About 20 years ago I had frozen shoulder syndrome that resolved through physiotherapy and exercise.

Dear Dr.

Dear Dr. Roach: I recently spent time with a hearing-impaired woman. She told me that tinnitus is sometimes caused by prescription meds, especially those for high blood pressure.

Dear Dr. Roach: I am a 79-year-old woman in reasonably good health. I am very active and do everything I can for my health.

Dear Dr. Roach: Sixty years ago, I was diagnosed with Raynaud鈥檚 syndrome by my doctor. I started taking nifedipine during winter months, but not during the summer.

Dear Dr. Roach: I am a 74-year-old man, and I recently received a negative result from my mail-in fecal test.

Dear Dr. Roach: You once wrote a column on chronic cough and suggested a medication that might be useful in treating this. Would you please remind me of the drug name? I have an elderly mother who suffers daily with this affliction.

Dear Dr. Roach: I am 81 years old and was diagnosed with shingles at the end of October 2020. After taking famciclovir, I am healing, but still have a scaly rash and shooting pains on the right side of my head where the shingles occurred.

Dear Dr. Roach: I am a 72-year-old woman with MGUS. I was just diagnosed with an ulcer, Barrett鈥檚 esophagus, GERD and a hiatal hernia of eight centimetres. My surgeon has put me on high-dose Prilosec and Carafate before bed.