Thanks for the question and concern. Vaginal discharges are as normal as respiration. It is not necessary that vagina gets wet only at the time of sexual arousal. It is wet all the time to keep it healthy and disease free. The main pint of concern is the swollen vaginal wall which you are talking about. It may be an indication for the sexually transmitted disease. You may be required to visit a doctor as early as possible in order to gain the early in time benefits. A regular injection into the vaginal walls or some dripping of the liquid medicine in to the vagina can cause the vaginal puffiness to be sorted out. Your doctor may prescribe you to go for some of the tests like the urine test, swab test etc in order to judge the type and the severity of the infection. The results may bring out the statistics of the infection in open. Thus, the thing is to remain cautious every time you have sex, also the usage of condoms cuts down the conception of the diseases transmitted through sex. Take care.