Aiyoh mama, I totally understand your worry lah, one week is really long for such a young baby! My neighbour brought her 7-month-old to KKH when she had similar wheezing and cough, and the doctor there told her bronchiolitis cough can actually drag on up to 4 weeks, so as frustrating as it sounds, it can be normal even though it doesn't feel like it. I think the key thing is if you notice her breathing getting faster, she looks like she's struggling to breathe, or she's not feeding well, those are signs to go back to A&E immediately and really push for a second opinion or admission. Since she's only 6 months and you're still hearing the wheezing yourself, definitely worth going back and maybe asking to see a paediatrician or specialist directly to get a clearer picture for your own peace of mind!