Recent electron data usage

Continuing the discussion from How much bandwith does Particle Publish use?:

It's curious to see this, but for the electrons that we have, we're seeing almost 5MB in the past day. We haven't been seeing near that much at all as we are only publishing once a minute.
It wasn't like that last week. Does cellular connection/reconnection contribute alot? we haven't done any otas to these devices either.

Continuing the discussion from How much bandwith does Particle Publish use?:

Just using sleep SLEEP_NETWORK_STANDBY for 1 minute, that's it.

Part of the code could potentially be blocking for 10+ seconds. If that is the case and Particle.process() isn't called, could that potentially be the problem?