i called in sick to my boss an hour before my shift and she didn’t reply, now i hear i might get fired

right after my symptoms started i let her know that i believe i have food poisoning and would be unfit to work. i have worked there for over a year and have been a very good employee, yet another person in my same position can come in over 2 hours late and be 10 mins late every day, and not even get a warning. i feel this would be a wrongful termination and i’m not sure how to proceed.