i have a bug or my minecraftv has crashed!

hey guys, im completly confused my minecraft has crashed and its been like this for a few hours now !!!! what has happend is when i started my launcher it comes up with a whole lot of writing well more then usual but this time it came up with java denied connect and then a whole lot of downloading connection and stuff and then it says check your java and proxy setting and i did its all good i also reinstalled minecraft and i done the same with java but its still not working and now it comes up with the thing where u have to sign in everyone once and a while and then when i sign in is says im offline and need to be online to sign in. and no i cant even play single player or offline or anything and then now i have no idea what to do and ive tryed shuttiing my laptop down for a while and restarting it and its still not working so can you guys please help me out !!!! i absolutly love minecraft and its just really upsetting that i cant play it cause im usally on minecraft life twenty four seven so i really would apreciate it if someone had an idea what to do or how to help the problem ! ps. thanks for reading

thanks
hellocristal3603
( minecraft name ^ )