How much farther did they tilt them? I've played around with the tilt of my handlebars over the years. While some positions have proven more or less comfortable for my hands and wrists, I can't say that any of the changes have made my position more or less aggressive. I think it would take a bigger change to my bars, e.g., changing my stem or stack, to accomplish that. In any event, just change it back (this is an easy enough change to do yourself with an allen wrench) and go back to your old position. If something is still wrong, consider your saddle. Saddles do not last forever. I usually only get 4-5k miles out of my Terry saddles. I use one with a cutout, though, and they tend to break down faster.
I'd also add that you should avoid making changes before a long ride. Always make changes weeks before a big ride.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher