When it comes to levels of pain, here’s my contribution:
I have a condition called acromegaly (aka Gigantism) which I started to notice when I was approx. 35yo. (I’m now 60yo.)
I didn’t grow to 8 or 9 feet tall because the tumour that causes it only reared its head after I’d stopped growing.
My feet grew THREE sizes and the pain over the next 20 or so years in my head, hands, feet, shins and jaw joints got worse and worse until it went off the scale.
All my teeth came loose too, so they’re gradually dropping out, which is saving me from dentist’s bills. 
When I got married, I wore size 7 shoes.
When I got divorced, I wore size 10 shoes.
I’ve never had gout, but (trust me) I do know what it’s like to have extremely painful feet.
Another thing that’s very painful… try an arthritic coccyx cos that’s really great fun. (NOT!!)
Mine was so painful in the end that I couldn’t even go up or down stairs, but I can now it’s been removed.