I should start by saying I'm not overly worried or else I would've gone back to GP already. Since birth my little one has had a rattle in his throat that comes and goes. At 3 months my HV advised GP appointment. I explained I breastfeed him, burp him and let him nap shortly after. GP thought it was silent reflux and prescribed Gaviscon. Didn't help. I worked out he gets this rattle not necessarily after feeding but especially after he cries /complains. At 4 monthsish he developed the skill of coughing. Great, rattle gone. But now he might have a slight cold, and the rattle is constant. His nose has no snot and yet coughing and swallowing doesn't clear it so it must be right in the sinuses. He's almost 5 months now btw. Please advise. Why is he such a mucus-y baby?