Hi Enid, as long as you didn't see any mold or pink or orange coloring, I think reviving your starter should work fine. A little patience is warranted, however, since it can take some time for the starter to wake up and become active again, particularly if it's been a while since you fed it last. It's not uncommon to see very little activity for the first 24 hours after your initial feeding, but I think you should see some improved rising after that. Within a few days of twice a day feedings at room temperature your starter should be doubling nicely and have an improved aroma and you'll be ready to bake bread again. 

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