4. General malaise or flu-like symptoms
Since herpes is an STI that stays in your system, you might feel like your entire body is fighting off this infection. That is actually the case. If herpes is in your system and you begin to experience symptoms, it may make your entire body achy and feel like you have the flu. If you experience this, make sure you drink a lot of water, get rest, and go see your doctor when possible to rule our a possible herpes outbreak.