My minecraft stuff got deleted?

I was downloading a shaders mod. After it got downloaded, I opened up my minecraft, and it told me to login. So, I tried, I typed in my username, password, email. I even did a password reset because it was telling me my password was wrong. After I got my password reset, I logged in and minecraft updated itself into 1.7.5. And when I looked, all of my servers that I play on were gone and my worlds were gone. Sorry if I'm kinda a noob, but is this suppose to happen when you update minecraft, or did the shaders mod mess it up? Is there a way I can get the stuff back? Btw I don't even think shaders downloaded.