Co-workers and management are beginning to treat me differently because I regularly use FMLA leave

I take a week or two every couple of months depending on how my mental health is. But since Ive been using it, the entire department at work from floor workers to management are treating be differently. Some are more hostile toward me, some just dont wanna look at me. Qutting is not an option at the moment but this is making the environment more miserable for me, any advice is welcome.