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Dear Dr. Roach: I am an 80-year-old man who still has psychological drive, but who has lost the physical ability for an erection.

Dear Dr. Roach: My son had a pacemaker placed in 2013 and got it checked every four months. He developed an ulcer on his coccyx. He was being seen every two or three weeks in a wound clinic, and I was told it was 98 per cent healed.

Dear Dr. Roach: I am a 62-year-old woman who has dealt with heart palpitations for many years.

Dear Dr. Roach: I am a nonsmoking woman living with a smoker. He smoked cigarettes outside. Now he is vaping, but inside. How dangerous is secondhand vape smoke? I am having a problem finding any information on the subject.

Dear Dr. Roach: I am a male, 67 years old, and I am afflicted with urinary problems — having to urinate several times a night, burning after urinating and the need to urinate often in small amounts only. My doctor prescribed tamsulosin, 0.4 mg.

Dear Dr. Roach: After taking prednisone for several years, I suffered a fracture of the tibia. My doctors took me off the prednisone and prescribed generic Fosamax. My last bone scan says that I have osteopenia and that I am 17% at risk for a break.

Dear Dr. Roach: I’m a psychotherapist with an expertise in working with adults who experienced childhood trauma. I know that early trauma can lead to later mental health challenges and see this in my practice.

Dear Dr. Roach: I always thought that I had a cast iron stomach; however, after a bout of suspected food poisoning about six months ago, I’ve had two incidences of violent vomiting for about a half hour.

Dear Dr. Roach : Some 20 years ago, as I was turning 50, a biopsy confirmed prostate cancer. I elected to deal with that through surgery, a radical perineal prostatectomy.

Dear Dr. Roach: I’d like information about a rare condition called Mayer-Rokitansky-Kuster-Hauser syndrome. The person I am asking about with this condition was born in 1958 without a uterus or vagina, and has one kidney.