Hi Glenna - I was diagnosed in August and my symptoms were bulbar along with slight weakness in my right hand. Since then both hands have gotten a little worse and recently I am having problems walking. I saw the neuro yesterday and like you my leg strength is pretty good. However my walking is wobbly and jerky. I tried to walk toe to heel and lost my balance several times. My right leg tends to lock out and not bend smoothly. Trying to walk fast is even worse, I twitch and jerk along and had trouble coming to a smooth stop.
The neurologist felt that this pointed to problems originating in the upper motor neurons, which go from the brain to the spinal cord. ALS affects both these and the lower motor neurons that go from the spine to the muscles. With UMN problems you get poor balance, coordination, jerkyness and so on.
Recently I started walking with a cane, I feel better balanced and less wobbly. Also people give me some room and I am less likely to get bumped, which I have trouble recovering from.