No I haven't checked the coolant level, I'll do that first. That's the round bottle right?
My oil light flashes when I go round roundabouts too, and has a loud beeping noise when it does so, it's only when I'm doing it at speed.
It's not my oil being low though because I had a recent new rocker cover seal and for the past 2 months my oil has been the same level (on the dipstick where it's meant to be lol).