Help! I hope its the flu

Has anyone on folistim developed fever or chills while taking it? I have only done two days at 75. Today out of no where I get hit with chills aches and fever. Im a teacher so it could be the flu or something else my sweet little germ carriers passed on but I'm worried because it's also a not good side effect of folistim. Don't wanna stop taking it but unsure of what to do. If it gets worse I will call Dr but hoping it's just the flu (how often can you say that)