What Causes Headache , Joint Pain And Low BP During Menstruation?

Hi, may I answer your health queries right now ? Please type your query here... my age is 31 yrs I got 03 major scissors from which I delivered 05 children amongst which 02 was died after 3-4 days of birth however 3 are alive. my last baby was born 3yrs ago now I have problem that during period of menses I feel quite uncomfortable, (head ache,waist ache,joints ache, low blood pressure etc. further unavailability of blood is also observed.