I had particularly rough sex almost two weeks ago, around the same time I was on antibiotics. My vagina was sore and swollen days after internally, but soon this spread to an irritated red and stingy labia and clit. I presumed it was a yeast infection and treated it with creams and daily salt baths. Soon the outside issues were treated but I was still sore inside. Assuming it had cleared up a few days later (probably too soon) I had intercourse again, and after my vaginal wall felt very swollen and odd afterwards. I also have a small lump on my groin (between my outer lips and thigh.) I had assumed the internal issues were also the yeast infection but now I am terrified there is a more serious internal issue. Please someone set my mind at ease! I'm hoping it is just a case of internal thrush that needs to be left alone longer and treated with a pill. I do not think it is an STD as I have only unprotected sex with one partner by accident for a short period of time when the condom came off. However I am very worried about a potential vaginal tear or injury.