For the time being, at least, if I were you, I'd treat this experience as a one off. As you say, life at the moment is stressful.
A similar thing happened to me when I was in my late fifties. At the time my husband was suffering from a long illness, from which he eventually died.
I was walking home and reached a cross roads, close to my home.
Suddenly I had no idea where I was or which direction to choose.
Equally suddenly, the fog cleared and I recognised my surroundings.
I mentioned this to my GP who said it was probably caused by stress and tiredness. His diagnosis proved correct because I am now in my eighties and of sound mind.
Having said this, if you are seriously concerned, get yourself checked out, as I did. 