Randomly my account got locked on Reddit

So out of nowhere I log onto to find

Hi (my account name),

At Reddit, we’re always watching out for your privacy, safety, and security. Recently, after detecting some technical irregularities on your account, we took the extra precaution of locking your account."

So I recovered my account and everything, enabled 2fa etc.

The thing that's driving up my anxiousness however is that when I looked through my emails and everything, I didn't see anything compromised. Was this a false flag? Did this happen to anyone else? This has never happened before since Ive been on Reddit