Helo I M 42 Years Old Housewife.i Have Heavy Flow

Helo I m 42 years old housewife.i have heavy flow cycles problem from 15 years.bcz of this now I have weakness.now a days I have stomach problem coz of it I can't eat proper. At this time I want to ask about my problem my muscles of all my body especially neck and around knees.I cant walk properly like others I feel pain every time.Give me some advice and solution of it bcz I had three kids they all are school goling and cant manage all .