"As tolerated; NO rough play or physical exercise for 6 weeks; no heavy lifting (> 5 lbs)"Sounds to me like doctor's orders to not do tummy time!
Today was a very sleepy and not very hungry day. I'm not sure I'd be at my best having had brain surgery 48 hours ago, but it's a little concerning none the less. She seems to have perked up a little more since Daddy came home from work, though, so hopefully she's on the up swing again.