Thanks, well he doesn't seem to be in pain when he is walking or running and isn't limping at all. Touching the paw overall is fine too, it's all confusing.
I only recently found noticed over the last week or so that my cat very occasionally lifts his left paw up for a few seconds before running off somewhere.
When I went to check his paw I found most of one of the nail's body could be seen when his paw was relaxed and a closer look I found that...