am i crazy and why wont they listen

all this started after the birth of my daughter 8 months ago. I was constantly in and out of the doctor office and er from pelvic pain, thick discharge and had not stopped bleeding....so three months later i happen upon a doctor who listened to my complaints and he finds something---yeah i am not crazy...turns out i had not delivered all of the placenta, some was retained...so i have a D&C done....everything is great for a month--discharge goes away pain in pelvic area gone...and now here i sit again having the same issues with some new ones thrown in as well

i have this thick snot like discharge(which i have seen on other posts) however mine does not go away, i even have it when i have my period...it also does not lighten up depending on where i am in my cycle...have been checked for diseases and everything is fine that way....i have extreme pelvic pain in the same area as i did before i had the D&C, and now it hurts to have sex with my husband...have done the trips to the doctors and i get no where, they all look at me like i am crazy and that this is just all in my head....

i am just wondering any ideas on how to get a medical professional to listen to what i am telling them, that i am sure something is still not right, instead of them just blowing me off and telling me that i need to see a mental health professional