B.
When my 4 y/o was little like that... We found out she had an ear infection.. She never had what they ask as normal symptoms.. pulling the ears, high temps, etc.. Sometimes she would have a low grade fever, but would go away in a day or two. Nothing to even alarm you with. The only thing she ever had was sniffles like it was a cold and we'd think the low grade temp was due to that. Well, brought her in because the bathing issue continued and someone mentioned this to me about possible ear infection. Well, she had full blown double ear infection that persisted to last on and off for 2 mths. Finally they put tubes in her ears after being on meds it subsided, but as soon as she was off them for two days, boom.. Ears would fill back up.! Now that she is old enough to tell us when they hurt or she tells me they are squishy ;-0)... I know she has fluid in them and off we go to the docs to check! She too even to this day when her ears are like that she hates getting her hair washed.
My daughter has also been blessed with allergies and this time of year as well as fall were always good triggers for the ear infections due to all the drainage from the allergies etc... She is also on Zyrtec daily which has helped tremendously since we discovered the ear infection issue. She maybe has had one a year since the discovery.
Hope it helps.. and hope you little one is off to tubby time like normal in no time!