How sick is "too sick" to attend Mass?

hello,
My son and I missed mass last sunday due to my being unwell,
as this is a grave sin as it say in the catechism, are we still in a
state of grace to receive communion, or do we have to go to confesion
first?
Many thanks, God Bless you
Lu

The following links should provide you with some guidance and relief. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.
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