I have a rare and potentiolly life threatening medical condition and at times I have to go see several specialists (cardiologists, hematologist, neurologist, etc). My parent's insurance will only cover me until the day I turn 26 (3 years) and my health is going downhill. I only have one or two appointments per month and I try and ask off as soon as I can. My job is a non essential retail one (everyone at the store can do it) and so I am not leaving them short handed when I go. The problem is a certain manager.
She, and her crony, for some reason don't like me. I am on time or early every single day, I don't ask to go home early and I do a good job (customers ask for me). She will through a hissy fit the minute I tell her I need the day off (yet the pretty college kids can go en-mass to the beach and she is happy for them.

) My appointments are during the day, usually in the morning or afternoon.
My dad ended up going to the store manager and having a "come to diety" meeting after I had a migrain the ER doc said could of killed me. (I had asked to go home and the manager's crony brushed me off and told me to take a pill). That ended up with some changes, but not much.
What is the best way to phrase "I really need these appointments" without seeming SS? I have shown them the refferel slips, along with Dr's notes and she rolls her eyes.
I would work somewhere else if I could, but my two conditions make that hard right now.