Loss of power when accelerating

I have a 2000 3.3 litre Nissan Frontier with 87,000 miles. I have been noticing over the past few days that when I shift and accelerate that the truck kind of jerks a little, kind of like it isn’t getting enough gas. Any thoughts?

When was the last tune-up, with spark plugs, wires, and an air filter? How about the last time the fuel filter was changed?