I’m kind of frustrated. My job just called me saying “ where are you, you are on the schedule for…

I’m kind of frustrated. My job just called me saying “ where are you, you are on the schedule for 7am irs almost 7:30.” Umm I cant work mornings and I told you guys this, also I wasn’t told about it ( I haven’t been there the last couple of days because I keep throwing up at work) since I started there I have always gotten a call asking what days are you available for the next week because I have another job.