niggling
niggly

She had the niggling sense that he was up to something.

He'd only been in this room once before, and he had a niggling fear of it.

They spent a few minutes on other things, but his mind refused to let go of one niggling thing.

Whatever niggling concerns were in the back of his mind, no one else seemed to share them.

Some niggling little thing goes wrong and they want their money back."

But a few niggling issues make it stop short of greatness.

His first niggling suspicion began to look like the truth.

But he also faces niggling problems that would never have concerned him in his old life.

He was getting that niggling feeling again, the one his wife, Rachel, always asked him about.

Does it seem niggling to question the virtues of the fine museum here?

He came out of it with a niggling suspicion that time had passed.

Niggling injuries slowed her at the beginning of the season.

In the back of my mind there was this niggling disconnect.

What had started as a niggling irritation turned to dread.

Still, he did, all too often, have to set aside niggling worries about her.

Was I ready to risk my position in the patrol over a foolish, niggling question?

But it didn't take away the niggling doubt in the back of his mind.

But these niggling points of distinction simmer down to one basic difference.

But casting niggling doubt on various witnesses was one thing.

Probably nothing, he murmured, but there was a tiny niggling doubt in the back of his mind.

The niggling doubt lay in his gut like a stone.

She felt the old, niggling fear trying to surface.

A niggling in the back of his mind said that he wanted to see more of where she went.

Perhaps that's why he perfectly understands that niggling feeling of "my life could be better".

Just getting all of the niggling details tidied away, then you can see them.