I had to take 2 days off from stitching as my shoulders and neck hurt from the way I was sitting, and my back pain increased as well. I have ordered a lap frame by K's Creations. Though I ordered it from Overstock dot com, as K's Creations never returned my phone calls (2 days in a row, messages left both times..4 business days total) or email. I don't know if they've gone out of business or not. Hopefully using the lap frame will make stitching more comfortable for me.
I made some more progress on the Quaker Sampler. Here is a picture of where I left off this evening.