Headlights and interior lights went out on way to work?

[slam59]

On my way to work half way there my headlights and interior lights start flickering off and on slightly. Every 2 minutes or so. Then I am like 3 blocks from work and they totally go out. I hit high beans znd they worked for like one minute then they go out. So I'm driving with no lights last few blocks. Turned flashers on they worked briefly them went out. but when I hit brakes then the flashers would stAy on. Yesterday during the day my CD player was going off and on and thought player was skipping. Guess not. Sound like alternator or bad wire or short? Just went out to truck before my lunch here at work and it fired right up twice no problem so maybe not alternator