Co worker of mine has been on long term sick, retail job, she's a manager.
It's no secret that she's off with stress but apparently not work related.
She's been to the hairdressers next door several times, on holiday twice, to the local pub opposite at least twice a week, walks her dog daily etc.
I know this is no business of mine, but I feel a bit resentful that she's on fully paid leave.
I find it a bit 
Can you just go about your business normally and flaunt your presence in the town if you're off sick?
Please don't flame me, I don't intend to cause any trouble for her, I just don't want to talk to my other Co-workers about how I feel.
Thank you