Hi,
Thanks for posting your query.
Your blood pressure is better controlled after taking losartan 100 mg.
Losartan is not associated with bradycardia.
Your cardiologist is right regarding your bradycardia. Athletic persons have increased cholinergic activity with decreased heart rate, so you don't to worry.
For heart burn you should consult with physician and should go for endoscopy.
Losartan is not a culprit drug for dyspeptic symptoms.
You may have gastritis or peptic ulcer disease.
Most of these disease are associated with H.pylori infection and can be treated.
You should also follow dietary changes as advised by treating doctor.
Take care,
Dr. Mayank Bhargava

Hi
Persons who are physically active may have a lower pulse.
The possible causes of lightheadness is anemia (low blood count), arrhymthmia ( abnormal rhymth of the heart), low blood glucose, problems related to the inner ear,decrease blood pressure, dehydration, side effect of medication.
You should consider revisiting your cardiologist who may perform investigations to rule out cardiac disease and also check for the other causes.

In terms of the heart burn-reflux can be related to diet (use of fatty,spicy, acidic foods), medication (such as nsaids), bacteria (helicobacter pylori can cause ulcers)
In most persons lifestyle changes are recommended first , if not effective then medication can be used.
Lifestyle changes would involve reducing intake of the foods mentioned, reducing carbonated drinks, weight loss if overweight, using small meals, waiting at least 2 hours before laying down after a meal.
There are different medications available : antiacids, histamine blockers, proton pump inhibitors.

I hope this helps