I recently recovered from COVID and it's been about 20 days since my first symptoms with all my reports coming back negative. I'm only dealing with some post-COVID weakness now. I've noticed that when I'm resting, my heartbeat is typically between 60...
Your increased heart rate while climbing stairs (145-150) and walking (125-130) after recovering from COVID-19 can be attributed to post-COVID-19 fatigue, dehydration, and reduced cardiovascular endurance, but given your recent normal ECG and TMT results, it's likely a temporary condition; however, to alleviate concerns, consider consulting your doctor or a cardiologist for a follow-up evaluation, and in the meantime, stay hydrated, gradually increase physical activity, and monitor your heart rate and overall health.