What does どうも mean in this sentence?

Question

I can't get why どうも is in the following sentence. What is its role in it?

どうも君は未だ胸に一物もっているような気がする。文句があればはっきり言ってよ。

Answer 1

This どうも means somehow. It modifies 気がする at the end of the sentence (i.e., "I somehow feel that ...").

It's the fourth definition of the entry on jisho.org and the second definition of the entry on デジタル大辞泉.

２ 物事の原因や理由がはっきりわからない気持ちを表す。「どうも調子がおかしい」「理数系はどうも苦手だ」