god, it sounds anything but daft.
i have a checklist i go through when baby is screaming, hungry/tired/cold/hot/dirty/wet nappy/
if none of these i assume baby is fine, just bored, wanting a cuddle.
i find going for a walk if the weather is nice, or if its not, just pacing around the house having a cuddle is fine.
distraction tips are, sit in front of the mirror, babies love mirrors. run a bath and both get in the bath, it will calm baby down. have a wee baby massage session, just use grapeseed oil from the supermarket, and get down on the floor, it will keep baby amused and soothe at the same time. you dont have to be an expert, just make it up as you go along.
have you got a door bouncer? if you need to get on with a couple of things, like dishes or hoovering, this can keep baby amused for 30 mins or so. my 4 mth old dd LOVES her door bouncer
hth and good luck