Does he smoke? I don't recall your telling us?

If so he needs evaluation for peripheral artery disease.

Yes he does smoke and has done for many many years.
We have both tried giving up a few time, but something always seems to go wrong when we try. We tried a couple of months ago and his mum had a stroke, and we have since found out she has lung cancer, which is not looking good as it's an aggressive strain.
I have said this should give us both a kick up the bum, as if his mum has it there is a greater risk he will get it too!

I have never heard of peripheral artery disease, is there a link you could give me or point me in the right direction?

Thank you kind lady xx