Brake light and ABS warning

Thanks for all the advice, seems like it could be a lot of things. The lights did not come on after being shut down for a couple of days. The brakes seemed to work normal during the 2hrs of driving after the lights came on. Half that driving was in stop/go traffic and as said no problem such as pulsating or fade or anything except normal braking. I really hate driving with those dash warning lights on, can't get my mind off what the problem might be, drives me crazy. I guess when I get time soon I'll start looking for the problem.