First Ocrevus next week!

Hi guys, I have my first infusion booked for next week ; ;(soooo nervous about it) but this week picked up this hideous cold / flu from my child , I can’t get out of bed eyes streaming nose running head banging. I’m guessing if I rest up I should be able to feel ok next week. My question is should I tell my nurse now? How likely are they to cancel it? Thanks xx