sorry to hear about
that! In my experience the restaurant business treats it's employee's the worst, you can't call in sick otherwise you know they are screwed and they make you feel horrible about
it. Please note - this is my experience. I'm sure there are some out there that treat their people well (IMO - just don't think it is the majority). Also if it is not a corporate restaurant, then the owners usually take everything personally, because the bottom line affects them and that can make them turn nasty.
The co. I have been at for 8 years when I went into a major flare, could not have been more supportive (but I did still come into work except for a couple days, so who really knows until it happens to you). But they have been great.