I am really sorry to hear about all these symptoms that you have been suffering from. They certainly sound very distressing.
The job of the emergency doctor
, in the setting of sudden or worsening pelvic pain, is to rule out the very serious cases of pain that might require surgical treatment. These include things like ectopic pregnancy or a twisted ovary ("ovarian torsion"). Since the emergency room sent you home, I suspect that these things were ruled out.
However, this does not mean that there is not an identifiable cause of your pain. In fact, there are many different causes of pelvic pain and irregular bleeding
that could be the source of your symptoms. These would include things like endometriosis or polycystic ovarian syndrome. I suggest that you start by getting in to see your primary care doctor
or your regular OB GYN doctor right away. They will be able to perform a full examination and help you determine what work up and testing needs to be done next to help figure out what is going on.
I hope you are feeling better soon!