Girls anyone experienced this

My post last month January 2021

My period came 2 days early which was Sunday which was very light monday was abit heavy x Tuesday was pale and Wednesday had no bleeding passed few days stomach pain in left side and tonight feeling sick.

Now

My post this month February 2021

Got period yesterday day early, but felt so tired and week yesterday today have headache, nausea and sweats like a bug feeling, anyone know what this may be

Thanks