Beers stopped fermenting.

[Hailseizer]

I have had a Muntons Yorkshire bitter on the go for 5 days now and after a great start it seems to have either slowed fermenting or stopped. Follwed all the instructions as normal and its sitting at around 22c. I have a fully sealed airlock type fermenter and no bubbles and the hyrdometer reads 1018 from a 1044 start. Should i panic! dont want to loose my brew, is adding more yeast a crazy idea? any suggestions welcomed!!

 

[micmacmoc]

Probably just needs a bit of agitation, hold the fermenter firmly and give it a twist so the yeast is roused.