Women only please ; have a lump ?

went doctor 3 months ago he said its a cyst and not to worry gave pills and shoved me out the door !!!! but i have a horrible feeling that this is not right its getting bigger and really hurts now and the pain is now going into my what should i do ? get a second opinion? the doc made me feel like i was a nutter!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!… please help thanks