Feels like someone is hitting the brake
2000 Toyota Camry 6cyl does good in town but if i'm driving say 55 mph occasionally it feels like someone is hitting the brake. The same feeling as if I was driving with the cruise control on and it slows the car down. But I don't use cruise control or the emergency brake. Seems to have become more often then it was at 1st. I don't hear anything grinding or unusual sounds. Sometimes are worse then others it can feel like that and lose maybe 5mph then go back to normal after a few seconds others... I have lost 10mph the whole front end feels like its gone down and a brake was it and it veers to the right. I drive my kids in this car and I really need to figure out whats wrong.