Toxoplasmosis

I've heard of it and you have to be scrupulously clean such as washing hands after stroking the cat.
I've kept animals all my life, cats and dogs, and up to now haven't received any nasty shocks. My 3 cats are my life now, so long as they're wormed, de-flead ? and vaccinated I don't envisage a problem.

I've got a cat. I've never heard of that before

Sorry to hear it hasn't cleared up. Have not had it myself but your post reminded me of a conversation about a mutual friend who got rid of her cats after coming down with this. It is unusual in cool climates but cats are definitely intermediate hosts of this parasite that can invade the eye. She did get better, when I bumped into her later, she looked fine and was.