Posted: Today at 12:20
Hi Glad you're feeling well enough to get out into the garden - don't overdo it if you've been poorly!
Those are old leaves, they've suffered the depradations of weather and snails/bug and will fall off in time. New ones will grow to replace them.
The bushes themselves are fine but lthe yellowish tinge indicates that they could do with feeding - some Fish Blood & Bone, which is a slow acting organic fertiliser scattered around them will do them the world of good.