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 and 80 bpm, and sitting it's around 75 to 90 bpm. But when I climb stairs, it jumps to about 145 to 150, and while walking, it's around 125 to 130. Is this normal after recovering from COVID because of the weakness I have? I had an ECG and a TMT last month as part of a regular check-up before COVID, and the TMT was normal even when my heartbeat reached 196. Everything was fine back then. Should I be concerned now?

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.