<human>: Hi reddit, 

So I've been at this job for 1.5 years full-time and 2 years prior during my University years and have continually dealt with this particular manager's bullshit (I work for the Canadian federal government). As a background, I'm an accountant and works in operations whereas this manager is a manager of a small back office but they do interact with my division on the daily. 

So to start off, when I was first hired (from student to full-time), I wasn't well received as some people were quite upset that I was hired in this particular position seeing as most people start off in a different position that's kind of lower (the job itself is basically the same just the title is different). So from that start I was already being picked on (this attitude was received by the others who were hired at the same time) . During this time, I've probably had two complaints were I came up in management's emails for complaints about attitude from this female bitch (I was admittedly wrong the first time but the second time I wasn't even present/involved).
 
Now, I've just received another complaint where apparently I took too long of a coffee break in both the early mornings and afternoon and I take too long of lunchs (a few of my coworkers go on break in the lunch room and eat lunch there as well). On average I go about once a week for coffee breaks and probably once every 2 weeks eating in the lunchroom. Again, I'm not even there 90% of the time and yet I'm being picked on again. I'm really annoyed because after the 1st time, I realized that I have this pretty decent job and I don't want to screw it up yet this bitch of a manager who's not even MY manager is still on my ass even though I pretty damn low profile. 

So reddit, how do you deal with this type of 'office politics' bs? I can file a grievance but that's a career limiting move.

Could you distill the essence of the text into 1-3 sentences?
<bot>: a Manager who's not my manager likes to complain about me even though I've been really low profile for quite a while.