Simply looks like you let your hair grow back--nothing more. People often don`t update information and/or pics on sites such as Facebook for ages, and when they do, their appearance has often, changed quite a bit. From what I can see in the [low-quality] pics. you have no issue whatsoever.... you`re just being ultra-sensitive to possible reactions...just shrug any negative `observations` off by saying `yeah I got tired of the shiny-dome look and let it all grow back --- take a good look because I might shave it all off again` ....they`ll soon forget about it, and move on to something else.