I am so sorry for you. IF you were unfairly treated, terminated you feel unfairly, you do have rights. Check into the EEOC, the website will show you guidelines. If you feel that you were unfairly terminated, discrimated against, etc. they may be able to assist you.
Good Luck, I know just how MISERABLE of an organization Walgreens can be. I hope the EEOC can help you. It may take time, yet they investigate and Walgreens will have to explain themselves.