Hello, thanks for the query to H. C. M. C.
Usually ovarian cyst
( one or multiple) is asymptomatic ( no complaint). One yr back you delivered a child so at least this cyst in not interfering in ovarian function of that side where it present.
Loss of appetite and nausea
and now 99 degrees temp. This is the cause of concern. Pain is also on the left side and slightly moving to middle of abdomen and than back.
In this situation only one possible reason is Amoebic colitis
or worm infestation. 2nd reason may be gastritis
causing nausea and loss of appetite.
Appetizers and antacids can improve your condition.
If no relief than consult a doctor and get blood examination, will find exact reason of disease. Good luck Dr. HET.