Smith felt the injury midway through the second half, and was taken from the field for the remainder of the game.
“I’m not quite sure what it is at the moment,” Bellamy told reporters post-match.
“He will have to have a scan and we will check him tomorrow.
“It might be related to the Achilles, but he felt a sharp pain so he thought he would come off.
“If it was five years ago he probably would have played on, but you get wiser as you get older, so that was the best thing to do to come off.
“After the Damien Cook try he could feel it as he was walking back to halfway for the restart.
“They will check it tomorrow or early next week and we will go from there.”
Smith has played 19 of a possible 20 games for the Storm in 2018, missing his side’s clash with Manly in Round 11 with suspension.