I have always had very thick brows, but wanted them to be thin, so for a long time--a couple of years--I obsessively overplucked them. Now I've realized that I don't like this look and want them to be natural again. About a month ago, I stopped plucking and my brows are slowly growing back, but there are little bare spots on each eyebrow that don't seem to be filling in. In these spots, I don't even see any block dots where a root would be. Is it normal for eyebrow hair to take a long time to grow back or grow back unevenly? Am I doomed to having sparse eyebrows forever, or is there an effective way to get them to grow back completely?