Thanks.
Had a diagnostic run yesterday and nothing was found, checked throttle sesnsors, fuels pumps/sensors etc and all was normal. I know a very good garage that i have been going to for years and the guy suggested i run some good quality fuels system cleaner through, which i have done, and for what it was worth i changed the plugs just in case. The car did seem quite responsive this morning, whether or not that is psychological at the moment is yet to be seen, but fingers crossed it runs better now.