I've had 3 or 4 boughts of vertigo these last few months

Glad to hear you feel better. Don't forget the salts.....it's a thing we lose with sweating. Easy to replace it.

Yes. Took about 2 years to be completely gone. Did vestibular exercises, don’t know if that helped. Doctors found nothing.

Drink lots of water . Many times it is a symptom of dehydration .

Might be low blood pressure or lack of salts due to sweating.