It's never a sure thing to get an STD. If you have 1 STD it is more likely to get another STD if that person is infected with the STD.

Herpes affects the entire gential region, but the wiping part is more for hygeine and not getting anything from your anus into your vagina.

Your throat swelling is not an STD symptom.

It is easier to get HIV if you have herpes, but keep in mind that 1 in 4 people have genital hsv2, and less than 1% has HIV. If it were that much easier, more would have it.

Use those condoms, but its not something to freak out over.

Wiping front to back is more to prevent e coli bacteria (in your poop) from getting into your vaginal area. It can cause urinary tract infections,. etc., if you do.