Thanks for your response. I am new to the web site. Regarding Bartholin's gland,I don't think that is it as I have nothing to note on my vaginal wall. There is no thickness or hardness in my labia majora. just diffuse swellling, in my labia majora. The pressure, discomfort does raidate through my groin area. It increased over night - and of course happens on a weekend.
It sounds like it might be an infection of the Bartholin's gland. Look it up online and see if that fits your symptoms. You'll find treatment options there too. Good luck.
I should add that I am married, no changes iin medicine, soaps, sex routine or anyhting I can think of.