I have Chronic Back Pain,I got arthritis in my back and no pain meds work.
When I sit down It hurts maybe after 30 minutes I have to keep moving,but the pain goes to my legs. I get really numb also.
But after I burn a bowl or two,I can chill and stuff at the computer.
I think it depends on the chair though,cause a sofa doesnt cause those problems,but my computer chair and my car seat,those will be uncomfortable.