The two-time All-Star returned to the club Saturday after receiving an epidural shot Thursday for a pinched nerve in his lower back. He was not with Texas for Friday's 5-1 win over Baltimore.
Hamilton left Wednesday's game against the Blue Jays during the fourth inning and has not been in the lineup since.
"I've got a toothache in my leg," Hamilton said.
Asked when he could start playing again, Hamilton replied: "When I can walk. I don't know right now. We're going to see if the shot's going to take. If not, we'll do another one and just play it by ear. I can't play unless I can do the little things off the field first."
Hamilton said before the game he had not talked with the team doctors or the training staff for an update. The team's doctor administered the epidural shot, according to team officials.
Meanwhile, third baseman Michael Young was on the field before Saturday's game, testing his left hamstring strain. Young said he worked out throughout Friday, but could not do sprints yet.
The six-time All-Star received a blood platelet injection Wednesday and is expected to be out for the next two weeks.
"My hamstring already feels a lot better," Young said. "Before, I couldn't touch it. Now I can touch my toes. I've already had a big improvement on that front."
Matt Palmer is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.