Dr Tal, I'd read about the hiccups being common in reflux, but the cough bit... it just makes sense when you explain that! In fact, I'm going to pass that on to a friend of mine whose 5 mo son has 'recurrent chest infections' but actually doesn't look unwell or get a temp at all. Is it ok with you is I cut and paste your words?

Thor has a walker, like the one you describe - but he can't steer at all, so when he hits a wall, he crawls off to find something else that moves!