Question: I am 67 years. We have 3 storied building. Till last three days, I had been climbing at least 10 to 15 times daily..But when I climb, my heart beats fast and I feel dizzy when finished. No sweating or breathing difficulty.My blood pressure is 80/130 and ECG is quite okay. I pass urine well. I under medication for hypertension and it is perfectly under control. I pass good amount of urine. My family physician suspected some stomach problem, since I had slight reflex. She has suggested to take water with mineral salt (WHO recommended) to prevent dehydration. I feel quite okay if I do not climb. Now I am getting good sleep also. I am an active person and for the last six years I used to do excercise. I take nuts, fruits and less fat diet. Vegetarian, does not smoke . I have sleep apenea and use CPAP regularly. Take multivitamin and fish oil capsule. Also Flax seed. Does not over eat. I am taking 2 litres of water daily.

My question is why I have started getting dizziness while climbing steps? What is the reason and how to come out of this? is it a gastric problem or a heart problem? What I should do to come out?