Cysts after menopause again

Hello,

I wrote before about having a 8-9 cm cyst and right ovary removed last july. (all pathology OK) (I have a 20 year history of cysts on both ovaries.)  I have not had a period since June of 06, and OBGYN did a FSH and told me I was in menopause.  By Sept of 06 I began with bloating and other symtoms (symptoms) of cysts again and was told I had a 5 cm cyst on my left ovary.  A repeat Ultrasound in December showed it still there,   Doctor said to repeat it again in 6 months.  I am still having what I feel are the same symptoms of cysts that I have come to know (and hate) and Doctor still wants to wait till the end of June.... Should I push to have it done sooner?  ARe cysts this soon after menopause common. Should I be concerned?  

Thanks  Robin