Yes, they are rumbling. A few rockets were fired at northern Israel last week for the first time in years.
And they have had a few explosions happen in Lebanon,
one of which they blamed on Israel detonating a spy device, and one of which they blamed on a leftover Israeli bomb. Neither explanation is all that credible. The first happened near a Hizb arms depot. Here's guessing they were really "work accidents" of the type that happen often in Gaza, where inexperienced bomb handlers routinely blow themselves up. These things happen when there is hasty gearing up for activity...
The previous week
they hinted they would take over Beirut if Assad falls in Syria.