וְאַתָּ֛ה בָּחֳלָיִ֥ים רַבִּ֖ים בְּמַחֲלֵ֣ה מֵעֶ֑יךָ עַד־יֵצְא֤וּ מֵעֶ֙יךָ֙ מִן־הַחֹ֔לִי יָמִ֖ים עַל־יָמִֽים׃
and thou shalt have great sickness by disease of thy bowels, until thy bowels fall out by reason of the sickness, day by day.’
Read midrashic interpretation of II Chronicles 21:15: and classical rabbinic exegesis.