I dont go to HV either. Other side of the coin for us. DD a small baby, weighs 16lb? at 10 months. She eats like a horse, breastfed until recently, now around 15oz formula (due to work) and Bf morning and night. She is perfectly healthy, is almost walking, crawls like she always has done, babbles away, claps, waves, blows kisses, and much more besides! I was told she was not putting on weight quickly enough, even tho she was within her lines (albeit the bottom ones) and that if I did not stop BF'ing she would be failing to thrive. I ignored her (mainly as DD would not take a bottle anyway until a few weeks ago).
However, I have always felt a little guilty that her size is my fault, my BF not good enoug etc, and is probably why I have not fought as hard as perhaps I could to keep Bf her without formula whilst working...I really feel resentful for that as I know its not true.
She is justabove the 0.4 line on the charts - which I might add is a bottle fed chart and she was bf only last time she was weighed, but has jumped over the 50% line for weight. So she is a tall skinny baby.
I decided, after her last check about 4 weeks ago, that I will not go back unless there is a prob, and then I will go to the GP.
Your baby sounds absolutely fine. He will grow up to be a strong healthy fine lad. because of you.