The Hammers are at the foot of the table, but Obinna believes the situation will improve.
He told the club’s official website: “I’ve never been down at the bottom for so long in my career.
“This is the first time I’ve been in a position like this, being at the bottom of the table for quite some weeks.
“We have to back and speak to ourselves and try to improve. We can all say that we play good football, but when you play good football and you don’t win, sometimes it doesn’t work.
“Sometimes you have to play badly and win and I believe our time is coming.”