Minecraft glitch help

Currently I can't connect to a SINGLE server. This all started two days ago when I was pwning lore and my game was suddenly lagging horribly. It went into an unbearable state, so I logged off. When I came to log back in, the log in screen froze and I had to shut minecraft down with task manager. I waited the night out and minecraft was working fine in the morning until it happened again yesterday. Again I waited it out, came back late last night. And now it's happening again. I can play SSP, but not any SMP. Whenever I re-open minecraft and then connect to a server, I get this long java error. (the freezing of the log in screen only happened when I first lagged horribly) I don't know what's going on, restarting my computer didn't help, so I was hoping one of you guys would know something that would.

EDIT: I am not getting the end of stream error or bad login.

Me aswell D:

i cant log in to the server right now either but there are only five people on

Its minecraft.net

happened to me, deleted everything reinstalled. Worked afterwards. havent tried since then though.