Is it ok to call in sick?

I feel so guilty and have a lot of trouble calling sick. But it’s day 1 of my period, usually day 1 and 2 are the worst. I’m in pain, nauseous, diarrhea, fatigued, shaky etc.

I don’t know if I should just go in anyway even though I see myself potentially vomiting and probably having to use the toilet every 30 minutes today

I mostly feel bad because I only work 2 days a week for medical reasons and I also couldn’t work the full 2 days last week.

Is it ok to call in sick?
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