I really don't think your gyne is caused by u sitting at the computer, might be caused of u being overweight tho. It can also be caused by your hormones not being balanced, theres hard to know what have caused the gyne. I'm guessing there's possible for your gyne to reduce within a few years, I don't think it will go away completely. If I were u I would look up a doctor to test your hormone levels to see if they might be the cause.