Help Me

So I Had My Period November 2nd-5th. My Periods are Regular. The Last Two Weeks Of October I Haven't Been Feeling Good, Headaches, Dizziness, Queasy . I Been Feeling Like That Couples Weeks Now . During My Period I Had Real Bad Pain In My Uterus. November 8th I Had Cm But It Was Clear With Light pink blood. November 14th I had thick Clearly Stretch Cm. It Says November 13-19th Are My Fertile Days.