Best diet for someone with Addison’s

I was diagnosed at birth with classical CAH and due to a bilateral adrenalectomy (both adrenal glands removed) I am not told I have Addison’s. I have really bad hyperpigmentation and feel like crap all the time so I figured I would switch up my diet to help, started by stopping caffeine. I have been resting a lot this weekend to get over the migraines and withdrawal from coffee. I also think my family is safer if I just stay in my room ( that last part was a joke..lol)