Have always been terrified of spiders. Have had a couple of nasty bites. Once changed into T-shirt that had bee over a chair in bedroom, few minutes later a real stabbing pain in side, ripped off T-shirt and a spider dropped down, took weeks for swelling and discomfort to subside bit GP didn't seem interested.
Recently had a tick bite while gardening despite wearing long trousers and socks, whole calf swelled up, very hot and hard and painful to put weight on leg, had antibiotics but still took around 2 weeks to clear and was told to keep checking for 2 months to see if 'bullseye' appears which would mean tick was infected and I could have lyme disease.
Worst ever was lying in bed feeling tickle on my face and brushed face with hand. Got up a little later and enormous, thick legged, black spider on pillow. Never ever go to bed without checking under pillows, duvet or bedspread and all around sides of bed for the monsters. It's developed into a real phobia for me.