I was out at the lake today hoping to reel in a few hogs and they wouldn't bite! There was a 7 pounder just chillin next to a log maybe 5 feet from the shore and she wouldn't go after my senko, spinner or crankbait. There was 2 of those today that I saw. I also saw another maybe 2.5 pounder who was very active and was eating from a school of minnows or something very very small and I tried on him but he'd just look at my bait and swim away, he wasnt interested in the red worm my little sister had on either. I did catch a few very small bass but these big ones won't bite! Any suggestions? Thank you. 

Did you try backing away and casting from distance?  They could have saw you and that may have kept them  from biting. 

There will be times when the bass are feeding on live bait that they will not touch a lure.

Your lure was giving off too many negative clues!

The big ones usually don't bite. It's how they got big.

I've read that bass only have a 20 minute memory. When you spook one, jut keep going and come back a little later in stealth mode with a light lure like a weightless Trick Worm.

Cast from far away 

Try creature baits, lizard or craw, sounds like she is nesting

weightless swim bait paused in his line of sight with slight twitches?

 

Whenever the fishing gets hard for me I go to finesse.  Try to go out with a smaller and more subtle presentation. 

 

I don't think she was spawning. It was right off a steep ledge off a fishing jetty. She was just chillin behind a log. Could be wrong. 

If you can see them, they can see you. Probably went on alert.