Does Allan Green suffer from "stage fright" ?

In his two biggest fights of his career , first his fight against a highly touted puncher in edison miranda and then to undefeated Wba SMW champ Andre Ward . In the Miranda fight it seemed as if he was nervous or something was up because if you remember he kept looking down at his feet and never was really in that fight aside from. Knockdown he scored in the 8th round. After the fight he said something to the effect of he wasn't 100% due to some illness he didn't care to disclose. Leading up to the Ward fight he really talked a good one ,if fights were won on just pure confidence and pre-fight machismo Green would be undefeated. This fight he just seemed reluctant to engage or throw any punches with intent to do damage he really just looked like a confused man and a Deer in the Headlights; if you will. This has to make you wonder does he has some sort of stage fight and just freezes up when the bright lights are on ?