> It made me feel horrible. Each time it would take me a few days to recover, feeling dizzy and mentally exhausted.
That doesn't happen with a genuinely easy effort.
> By push through it I meant keep it up for a while longer even though it made them feel unwell, thinking they would get past the unwellness.
Yes, that is really bad advice and will lead to overtraining in a very unfit person.
> I wasn't intending to suggest anything remotely in the same ballpark as overtraining, that's not the kind of pushing I had in mind.
I don't know what you mean by overtraining, but pushing through feelings of unwellness or fatigue and continuing to workout is exactly how you get into that territory.
They also said:
> Very short distances, very slowly and very gradually.
Which does not sound like overtraining to me. Any relatively healthy 30-something should handle that just fine no matter how untrained they are. They should get over the feelings of unwellness etc after a few weeks or at least a few months.
There is clearly some underlying condition causing this, it's not overtraining.
> It made me feel horrible. Each time it would take me a few days to recover, feeling dizzy and mentally exhausted.
That doesn't happen with a genuinely easy effort.
> By push through it I meant keep it up for a while longer even though it made them feel unwell, thinking they would get past the unwellness.
Yes, that is really bad advice and will lead to overtraining in a very unfit person.
> I wasn't intending to suggest anything remotely in the same ballpark as overtraining, that's not the kind of pushing I had in mind.
I don't know what you mean by overtraining, but pushing through feelings of unwellness or fatigue and continuing to workout is exactly how you get into that territory.