The "fear period" at around 8 months is well known, tough not all children seem to go through it. Psychologically the idea is that the child is afraid of your leaving , as she hasn't yet got the brain power to realise you come back again! It doesn't last long, maybe 2 or 3 weeks. Personally, I used to carry my son around in a sling most of the day, as he would get frantic if I was out of sight and I couldn't see the point of giving him such grief. You can vacuum, all sorts while "wearing" your baby. Then I played a lot of leaving & coming back games, starting with a few seconds and building up.
Basically, don't worry, it'll pass soon, just do whatever you feel is right to keep your baby happy till the next stage! All the best.