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Dear Dr. Roach: I have been a pretty regular blood donor for decades. At times, I鈥檓 rejected because I just miss the minimum iron count necessary. My question is if I should continue to be a blood donor, as I am 84.

What鈥檚 the worst of times when travelling? It鈥檚 when you鈥檙e sitting on a bus tour 100 kilometres from the next stop and you begin to suffer the bowel spasms of traveller鈥檚 diarrhea. If the worst scenario happens, it鈥檚 a moment you will never forget.

Dear Dr. Roach: I am a 75-year-old man with an arthritic back, urinary tract problems and, worst of all, highly sensitive skin. There are few items of clothing that I can tolerate.

Dear Dr. Roach: My local news outlet here in Saskatchewan published a story on mutated strains of HIV present in my province being a concern to the medical community.

Dear Dr. Roach: I鈥檓 a 65-year-old male. I鈥檝e had scoliosis since childhood. I experience stiffness, discomfort and some soreness.

Dear Dr. Roach: I am a 65-year-old woman, very active and in good health, my only medication being a daily 5-mg tablet of Exforge to control high blood pressure. My mother had systemic lupus erythematosus and passed away when I was 13 years old.

What should you do if you are diagnosed with gallstones? Today, 10 per cent of North Americans share this medical problem. For some patients surgery is the prudent choice.

Dear Dr. Roach: Why aren鈥檛 all people screened for genetic hemochromatosis? It is the most common inherited disease. The tests are simple and would save so much suffering and massive payments for care.

Dear Dr. Roach: I鈥檝e heard that there are issues with the enzymes, proteins and chemicals that are found in animal meat and plant matter. Somehow, I鈥檓 told, it affects a woman鈥檚 brain and makes her go crazy when they鈥檙e mixed together.

Dear Dr. Roach: I am a 78-year-old with severe back pain due to compression of the nerve. My activities of daily life are more and more limited, and my quality of life is suffering. I am told I need a back operation, and I agree that it is necessary.