If your doctor has told you that the hematoma is small and not a cause for concern, then it is likely that they have assessed the situation carefully and do not see any immediate risks to your pregnancy. 

Cervical polyps usually come back. Sometimes, one or more of the symptoms you experience are abnormal bleeding, pain, or spotting. The cause of this is not known with certainty, but it is most likely due to the changing hormone levels in the body, or prolonged infection that has not been cured. The polyp is often removed because it is usually problem-free. The doctor should closely monitor your health to know precisely everything is normal.

Please let me know what was your question. I can provide you with the answer once you have asked the question.

you should see a gynaecologist right away. The presence of a yellowish discharge could bear witness to an infection or inflammation in the reproductive system.

Bleeding could be due to a condition called postmenopausal bleeding. This may mean a severe health condition. Please see a gynecologist for more evaluation and treatment.
 

Yes, it's possible for fibromyalgia to develop after a C-section.