Hi! I had high risk vaginal sex about a month ago (he didnt *** in me though) 2 weeks after i had a sore throat that felt kinda like post nasal drip and a headache that would come and go. The sore throat finally went away after about 2 weeks but now i have swollen lymph nodes on the right side of my neck that werent there 2 weeks ago. I also have pain in my right underarm but I dont feel any swelling. Do ars symptoms come on one at a time like this?