Philip Humber’s dream season with the Astros has reached a breaking point. The veteran righthander gave up seven runs in the first two innings of Sunday’s 9-0 blowout loss to Detroit. He exited the game having allowed eight hits and eight runs while walking three in just four innings. Humber’s ERA hit 8.82 and the former Rice standout is 0-7 this season in seven starts. After giving up 35 hits, 27 runs and nine walks in his last 15 innings, Humber acknowledged postgame Sunday his velocity has fallen off. Pitching coach Doug Brocail asked Humber after the second inning if his arm was hurting. “I’m doing the best I can. [...]