I am fat... 95kg at 160cm ....

I have all your problem, almost mostly all of them.

How i did now is to slow down the pace, and raise the gradient.
Yes, I do climbing now... no shock to all the joints. and still maintain good heart rate...

I do started marathon as well, but 5km, next target will be 10km marathon... each marathon done, will be joints pain for 1 week++