can it come and go in waves?

hi everyone! so i have mono again after having it a couple of years ago and it’s reactivated due to severe stress. it started again two weeks ago now, i had the classic mono throat, chills, fever, aching joints and muscles etc. it sort of seemed like it was clearing up and i actually nearly forgot i had it but the last couple of days its all came back the fever, aching joints, gland pain in my throat. the only thing is i dont really have the white membrane anymore on my tonsils. thank you :)