Company wants to change the shift I've worked since I got hired.

If your employer is attempting to unilaterally impose a change in your shift such that it would be seen as a fundamental change to the terms and conditions of your employment, this would amount to a constructive dismissal of your employment triggering your severance entitlements. You do not have to accept the change if it is significant. However, you should definitely contact the number below to speak with one of our employment lawyers so we can more thoroughly discuss your matter and assess the best course of action for you to take, which will depend on your particular circumstances.