I know this will sound incredibly stupid (hacked)?

ok so i have 1 full protection antivirus and ofc malwarebytes, now suddenly i cant log into sc2 anymore, or battlenet so i ume i have been hacked...As the title says are there any other possibilities, e.g battlenet log in server is playing up e.t.c, and if so what can i do to stop this (i use an anti phishing browser)