OBD 2 codes

Out of no where while driving my truck(00 Silverado) the service engine light can on. Sudden loss of power, made it home. Checked the codes, came up with p0452,p0463, and p1639. Truck was running like crap. Plugged in my power programmer, eraser the codes and it now runs fine. Any suggestions on what I should do? Wait till it codes out again, or try to research the problem further. My truck has 89K on it. Any help would be greatly appreciatedy. And how do I post attachments?