Hello. I ve been unwell recently where I keep feeling dizzy n lightheaded like I m going to faint. I ve had blood work done n all my results were normal. The only thing they did find was my heart beat was 58beats. They put it down to me being active, but for the last 6months I ve hardly trained. As in I ve trained an hr a week. Before I had my ECG I power walked to the hosp because it was some distance I didn t even wait I went straight in. And before all this I had trouble breathing with cardio. I don t have asthma but I was given an inhaler to help. The ECG technician said I should have another ECG on a treadmill but my doc wasn t interested until I had my blood results back. What s your opinion on this?