Is this the start herpes?

hi, so i recently have slept with a girl who has a very high body count (people she has slept with) she said before we had sex that she has had all her test and are clear but couple days later i see this and also have a flu like symptoms which can also not be a coincidence as a lot of people are getting it right now. i have (headaches and sore throat, green phlegm at first was clear with blood), but i am not also blaming her for this but i do have a pretty poor hygiene when it comes to changing