Purr's frantic search for food may be an alarm bell. His Blood Glucose has dropped low, and when that happens it means raging hunger. I'd take Linda's observation seriously..it sounds like Purr needed to eat something RIGHT AWAY. He might chow down on something that could make him very ill, or worse..like plastic wrap.
Did you know that you can freeze cat food, and put it out for Purr, so it won't spoil? By the time he needs to eat it will be defrosted, and it might keep him from raiding the garbage can.
I miss sleeping with my kitties. (I sleep in a recliner because I must sit up all the time). Dottie's bed is on my left, and Gizmo's cot is on my right, but nothing, nothing, beats having a kitty cuddle up to you.
Until they decide they want to eat. They are the most merciless alarm clocks, EVER!
Heh..we've all lanced through our cats' ears into our own fingers...does that make us blood brothers/sisters?