Ugh. First off and i didn't go to far "off" the bike. Was in the far right lane of 3 in stationery traffic and went to pull across through a gap into the far left lane, incidentally a bus lane. Looked left, no bus, pulled into middle lane, should have looked again, didnt, pulled out, BANG! Completely my fault. Bus driver said he rides a bike too and was mostly concerned for my safety. Advised me not to ride home cos of the shock but tbh I just can't afford a tow at the moment. Especially because I need a new indicator and possibly exhaust. Anyway, just to vent, so angry at myself and I'll never neglect to double check again.