So sorry to hear Leo has had a bad day. Rory goes through ups and downs, too. Some days just worse than others for no apparent reason.
I really find he is worse when there is increased excitement in the day.

Maybe worse with the weather?? I know others have said the weather seems to make a big difference.

I have found Rory really needs BOTH Furosemide and Gabapentin to be comfortable. If I forget either one of these, he starts to scratch more. While i was in Australia for a month, he stayed with my mom and she noted the same thing. It is trulyl the combination for Rory that does the trick.

Jen - have you tried using both at the same time?? That might be the next step.