Girls, how to deal with really bad periods?

The pain is so bad I can't concentrate on anything, I throw up or I constantly feel like I'm going to throw up, I feel dizzy, my legs hurt and arms feel weak.

Can't take hormonal birth control, health reasons. But i can't live like this and not be able to function for a week every month.
They used to be bad, but have gotten way worse this past year. Before I used to get some months where i had manageable pain but not anymore.

What suggestions do you have?
Girls, how to deal with really bad periods?
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