Hello doctor. Please advise me. Is my heart rate of 105 beats/minute dangerous and is there any safe way to prevent it, doctor?

My father had coronary artery bypass surgery for diabetes and hypertension 2 weeks ago and is still in the intensive care unit. Currently, his white blood cell count is increasing, he has no fever, many tests have been done but no infectious microorganisms have been found, and despite being given strong doses of broad-spectrum antibiotics, he has not responded to antibiotics. I would like to ask why his white blood cell count is high 2 weeks after surgery and how to treat it?

I experience pain and numbness in my left chest whenever I drink coffee. Additionally, I notice muscle twitching in the left side of my chest, an irregular pulse, and a transient discomfort reduction after intense physical activities. I wonder if it is normal to have numbness and pain in the left chest following coffee consumption.

May I ask, my uncle is 50 years old, currently taking thyroid and cardiac medication, can he take Omega 3 fish oil at the same time? I hope the doctor can provide an answer soon. Thank you very much, doctor.

Dear doctor! I would like to ask how short PR interval is treated and if the disease is dangerous. I hope the doctor can advise and answer. Thank you!

I recently had a heart physical examination because I was experiencing occasional sharp pains in my chest and a fast pulse, reaching 110 beats per minute. I also felt fatigued. During my general physical examination at the heart hospital, I underwent several tests, including an ultrasound, blood test, electrocardiogram, and stress test. The doctor concluded that everything was okay. However, I sometimes notice my heart rate increasing to 90 beats per minute during light activities, and I feel fatigued. My question is, is it normal to experience a rapid heart rate accompanied by fatigue? Thank you, doctor.

I usually measure my blood pressure at home using an electronic device, and I’ve noticed a difference between my readings when sitting and lying down. I am quite confused about whether the result of 140/90 (when I stand) or 122/79 (when I lie down) is accurate. Is it normal for my blood pressure to be much higher when I am sitting compared to when I am lying down?

I am 52 years old. When I went for vaccination, my blood pressure was measured at 145/65. Doctor, is a blood pressure reading of 145/65 considered high blood pressure? Thank you for your advice.