I'm deciding to leave my job (been here for 2 years) due to too much pressure and it's also affecting my health. Things got so much out of control, so I've started looking for a different job. I'm currently a warehouse worker and looking for similar jobs because I like that kind of work.
Anyways, what could I put as a reason for leaving in future application forms or when asked in interviews? Is it enough just to say it was affecting my health? I work a physically demanding job and in temperature controlled environment (chilled).
Or can I just say that things went out of control and I'm leaving because I want something better for myself? Also, can my manager give a bad reference about me, especially when I'll be leaving after 2 years of service?