I here ya. I had a similar situation were I was down to one pad (dry) and went and golfed for 18 holes. Felt great but leaked like a cheap faucet. O man I went through several pads. Oh and those water holes, Jeeze what the heck.
Did you do any strenous activity, twisting motions, bending motions, eat lots of water melon or other drinks.
Hang in there this too is normal and will just simply get better as time goes by, it will. I would not worry at all about what happened. Does not sound like a relapse to me just a heavier day.
All the best,
Frank