The money received from the VA Funding Fee is used to offset the few loans that go into default, and further reduces the cost to taxpayers, ensuring the VA Home Loan program continues for future generations.
Not likely. Most swollen or inflamed lymph nodes in the groin are not due to STDs, and gonorrhea and chlamydia don't do this. (There is a special kind of chlamydia called lymphogranuloma venereum or LGV, which causes this kind of problem, but extremely rare and almost never in heterosexuals.) If you're at risk for STDs, get checked for gonorrhea or chlamydia -- but not because of lymph nodes in the groin.
Seasonal allergies do not directly cause swollen lymph nodes. However, seasonal allergies may cause sinus infections or ear infections, and these infections are a frequent cause of swollen lymph nodes in the neck. Swollen lymph nodes can be due to a number of other conditions as well. If your swollen lymph nodes persist or concern you, see your doctor.