How to test mysql for changes

I'm OCD person, I think I accidentally dropped something in my mysql. Problem is I've around 50 databases, and I cannot manually check everything :( Is there a way to check for these kind of changes? I tried to look at timestamps in /var/lib/mysql but it didn't help, I was looking at directory timestamps. I also ran:

table_schema,table_name,update_time
FROM information_schema.tables
WHERE update_time > (NOW() - INTERVAL 1 day)

it only returned databases changed in last few secs.