The Nigerian first publicly criticised the Baggies back in January when he was refused permission to join fellow Premier League outfit Queens Park Rangers.
Since then, the 31-year-old has spent the majority of his time on the bench - something that has angered him.
"Keeping me on the bench now is worst than what they did on the 31st. New advisers told me to take say its all my fault cos its better [f]or me," he tweeted.
"If they like they shouldn't even give me 10 mins to play. Threatening to ruin my career? Career I closed already last summer? No harm to me," he added.
"Want to treat me like an average player. The abuse and praise I get is it average ? So get some extra from me too."
Odemwingie came on in the 64th minute during yesterday's 0-0 draw against Stoke City.