Why oh Why can't my vagina behave normally!

So I have been doing pretty well the last few weeks, however, nothing is ever easy with this situation! I had pain while wiping so I checked it out and found a dime sized lump on my labia minora. It is painful to the touch, hard, smooth and with no head. I am STD free and in a monogamous relationship, but neeedless to say this has caused me a major freak out. My friend thinks it might be a boil. I have emailed my specialist to see what she thinks and if I should go see her, go into my regular doctor, or wait this out. I have also looked up all the Estrace side effects to see if this is one of them. I hate this and I hate how freaked out I get whenever anything happens to me down there! And of course with my luck things like this only happen down there after 6pm when the doctors offices are all closed!