Hi, I Am 54 Yr Old Female In Menopause. I

Hi, I am 54 yr old female in menopause. I have a new sexual partner after 6 months of no sex. He was well endowed and we had sex multiple times for four solid days. Very pleasurable. I feared I would be sore, however I did not use any lubricant the entire time. On day six after he left town, I had an extremely sore vagina! So sore, that it burns and stings when I urinate. And feels like a dry tampon is stuck up there. I also am noticing a off white discharge , that has a moderate odor.
I thought originally I might of had vaginal tears but I can't see anything.
Please advise
Annie Quinnell