Rolling activity after 1 month - SURPRISE!! yipes

So my Indian Brown was in the primary for at 68 degrees for 3 weeks, I then dry hop it for 5 days and bring the carboy upstairs where it's 80 degrees think I would bottle the next day (today).

I wake up and look at the carboy and it is bubbling away at a rate of 1 every 7 seconds (I know I know) and looking inside the carboy I see a lot of activity.

After a month?????

I know shaking the secondary can release some CO2 but this looks like real fermentation.

it's always something isn't it.

Warming the beer releases CO2 also.

You'd know the answer if you took gravity readings.

Why do you think I don't take gravity readings? I always take gravity readings but rarely in 4 hour intervals.

I've never seen CO2 release that lifts sludge from the bottom before.