This summer I was riding at Uwharrie forest and was climbing a hill when my bike stalled and started rolling backwards. the rear wheel hit a stump and i flew off the back of the bike and rolled down the hill. I was a little dizzy and had trouble hearing for about 5 mins, and my side hurt bad. Do you think this fall is enough to warrant inspection of my helmet? (there is little cozmetic damage on the outside, and all my foam looks good