Re: Worry worthy or normal?
It sounds like something other than a startle. Perhaps he's in pain (sudden reflux?) and this is his reaction to it? Or something neurological in nature?
I'm no help, but I'd be calling the ped to ask about it since I am clueless.
Melissa-Wife, mother to DS 4/02 and DD 4/07, DS 7/08
ISO: my lost shaker of salt