Chem 1220/1620 curve?

This might just be a case of me getting paranoid, but I have been told by many of my friends that they got curved from a C- to a C+ or a B to an A- while I had a 71.65% and only got curved to a C. Is this normal? I feel like I may have barely missed the cutoff or it might be a mistake, but it’s really upsetting because I have some pretty bad depression and wasn’t able to get any help this semester due to my class load and feel like I just barely missed the cutoff of being curved like the rest of my friends.

you probably barely missed the cutoff. You probably got curved to like a 76