Howe has enjoyed plenty of highs since first taking the reins at the south-coast club in December 2008, avoiding the threat of relegation in his first season before leading the Cherries to promotion to League One in 2009/10.
The 35-year-old left Bournemouth for Championship side Burnley in January 2011 but returned of his own accord 21 months later to undertake a second spell at the helm - and he has continued where he left off.
Leading the club from the League One relegation zone all the way to promotion, including a club-record unbeaten run of 18 matches, Bournemouth now find themselves eighth in the Championship.
But Howe - almost one year to the day since his Cherries return - admits he still fears for his job.
"I think you always fear the sack," he told Bournemouth's official website. "From the day I took the job to the day we stayed up against Grimsby, those worries have never gone.
"I might not be in the job this time next year and I've got to constantly prove that I deserve to stay in the job, to build a team and take the club forward.
"It doesn't matter how successful you are, how many games you have won or how many promotions you have got, it's history and it doesn't mean anything.
"What is really important is the future and the next two or three games and whether we are going to establish ourselves in the Championship in the long-term.
"The fear of not doing well and not winning games drives me every day. I think as long as I have that inside me all the time, then hopefully we will be successful."