We live in a diverse society, and HN is just as beautiful as our society in its diversity. However, there are people who absolutely shouldn't walk without consulting with their physician.
I'm talking about people that literally had spinal fractures from standing up (pretty sad really).
A friend of mine, who is obese and takes a lot of medication, and also who has recovered from COVID, started getting really lightheaded when we walked uphill about a block to our parked car.
I was once in a similar situation where after recovering from surgery I found I could only walk short distances before becoming lightheaded and tired. I asked a medical professional for advice. He told me to get over it. I'm lucky I didn't have to pay for this information.