I’m sick, and he’s mad. Should I be upset?

Hi. I have an autoimmune condition that makes me vehemently sick, roughly around once every 2-3 weeks. It’s like having the stomach flu/food poisoning if you’ve ever had it. Anyways, my boyfriend knows about this and how often and inconsistently they happen. Anyways, today I’m having a really rough day. I got sick on the way to work this morning, and had to go home, shower and change. Got to work, it’s been 2 hours, and I’ve ready spent most of my time in the bathroom.
Anyway my boyfriend knew how sick I was throughout the night, and has yet to check in with me or ask if I’m ok. We talked this morning about what his schedule is today, and I asked how he’s doing, but hasn’t reciprocated. He seems more distant/short. I’m supposed to come over for dinner tonight, but he knows that with how I’m feeling I may not come. Does he have grounds to be angry with me about this?
I’m sick, and he’s mad. Should I be upset?
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