"I have a genuine phobia of them.
I am aware I am bigger than them. I am aware they can’t hurt me, the sight of a big house spider is enough to make me feel light headed and panicked"
Also, I'm billions of times bigger than viruses but I'm still scared of some of them. Also scorpions, poisonous snakes etc etc. Me being bigger than something doesn't mean I shouldn't have any fear of them. I'm bigger (definitely taller anyway) than a rottweiler, but I'm scared of those too.
It's very normal to be scared of spiders as it's instinctive. You can't really rationalise it unfortunately...no matter how many mansplainy, patronising poems anyone posts.
And before anyone says they're totally harmless, a friend of mine in London was bitten this year and lost a huge chunk of his flesh. Sorry to freak everyone out, but "they're harmless" isn't actually true. And also, the fear is instinctive, because the spiders here which won't kill anyone, look, at first glance and to an untrained non expert, much like other spiders which will.
Their once was a deadly spider
Who lived overseas, a good hider
It hid in a box
Of men's trainer socks
And jumped out and hid in my sliders
So, you see. Poem. Argument won, I think you'll find....ahem.