dosent matter the flyhalf on my team is about 5'6 and like 9-10 stone so no not at all and I play u19 but rugby dosent matter for sizes like both the wingeras and the fullback are bigger then my and I play open side flanker im 5'2 and 115-120 pounds like 8 stone.
It doesn't really matter, one of my team's fly-halves is about 5"5 and 8 stone while the other is 5"10 ish and about 12 stone +. (@ u16)
For Rugby, it doesn't really matter.
As long as you can play effectively and consistently you will never be too tall or short. But I 'd say you are a good size a little short but that can be a advantage.
