Hello and welcome to HCM,
I will address your problems one by one.
Firstly, the 
ovarian cyst is a benign lesion commonly seen in ovary.
A ovarian cyst measuring 4 cm can cause pain and abdominal distention.
Bloating, fullness and 
abdominal pain can be due to 
indigestion.
Loss of appetite, f is seen in chronic diseases, malignancies etc. 
The symptoms of lower abdominal pain and frequency of urination are seen in 
urinary tract infection.
You need not worry about the ovarian cyst at this point of time.
Ovarian cysts are usually benign. If you experience menstrual irregularities along with abdominal pain, you can consult your gynecologist.
For bloating, and abdominal pain, you need to consult your physician for examination of the gastro-intestinal tract, relevant investigations and hence treatment.
For urinary symptoms, you need to get an urine examination at the first hand to look for evidence of infection.
Thanks and take care
Dr Shailja P Wahal