I have high triglycerides today I ate salad and two pieces of pizza felt tired short of breath and pinches in my chest, felt heart pounding?

Not enough for diag. There is not enough information to make a diagnosis. The pounding in your chest plus fatigue suggests either an irregular heart rhythm or anxiety, but there are several other possibilities. Get yourself checked as soon as possible; if you still feel poorly get checked now. Avoid driving until you get this sorted out.