should i be worried?

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.
I would be somewhat worried. If I remember correctly, the average in COMBANK is upper 60% (it's been about a year since I took it... so I might be a little off). You still have a decent amount of time left before your exam. With efficient studying, you can make a lot of headway. Are you only doing COMBANK? I'd highly recommend UWorld over COMBANK. I used UWorld as my primary question bank and COMBANK as a "study break," as did many of my classmates. The explanations in UWorld are 100x better than what you'll read in COMBANK.

Even if you're only taking the COMLEX, I'd still highly recommend using UWorld as your primary question bank.

Here's a COMLEX percentile calculator: http://www.nbome.org/score-conversion.asp

Last year, a 500 was only the 43rd percentile. The average is closer to 530 now.
 
Top