[nass]

Those are sweet chairs. I don't know why you would want to hold in your farts? do you secretly enjoy smelling them?? I know everyone enjoys their own brand but still let it out and you don't have to lift a cheek or anything. :)

Since you say your back is now hurting you, maybe it was out of whack before and now the chair is putting it back in line... give it some time don't slouch sit up straight son.

We have sweet chairs here too they're called LEAP chairs made by global I think? they have more adjustments then you can shake a stick at