Have you been on any 8000 metres mountain? :-)
Yes, low on K2 and on Broad Peak, and on Chogolisa (just sub 8k).
I dont beleive however I have the physical capacity to actually summit one, thanks to many years as a youngster carrying way too heavy backpacks thru the Himalayas i now sport a serious back issue and a hip problem - and no matter how much money I throw at doctors it rarely gets better.
We live in hope but..