I think it depends on how big of a freak out it is. I mean, if she freaks out and tries to hurt herself or others, YES, it is important to talk to someone and try to get her help.

But if it's more in the sense of she breaks down crying, or snaps at someone when she's stressed out or having a hard day, I think everyone does that.

I'd hesitate to say anything to your President about it unless you think her behaviour will somehow adversely impact the chapter.