Posted by Sabrina B. @gametimegirl

Lamar Odom’s father says he’s NOT gravely ill … and was only suffering from a stomach virus earlier this week … but he’s grateful that his famous son would skip an NBA game to be by his side. 

Joe Odom was out in L.A. yesterday and explained, “[Wednesday] night [Lamar] stayed with me all night … just kickin’ it and whatnot … but everything is good now I feel a lot better.”

The Mavs were scheduled to play the Lakers that night (L.O.’s former team), but Lamar was excused for what the team called “a family matter.”

Lamar’s had a pretty tumultuous relationship with his dad — the two were estranged for years due to Joe’s heroin addiction.

Seems the two are on pretty good terms at the moment.

–TMZ