The 30-year-old, who dismissed Brad Haddin after lunch to help seal the win, admitted that he was "lost for words" when the final wicket fell.
"It's amazing. In about an hour or so I'll probably be asleep - it has been draining emotionally and physically," he told BBC Sport.
"I didn't hear anything [for the final wicket] but Matt Prior and Cookie were convinced. I'm just delighted we could review it and sneak home. I'm lost for words, it's been an amazing five days.
"At one point it looked like we were only going to have a lead of 150 but Stuart Broad and Ian Bell batted superbly well and got us to a decent total. I went off with a bit of cramp, I'm not used to 13 over spells. I managed to get it sorted out over lunch."
England won the contest by 14 runs.