Would you be worried

Guys, long story, but would you be worried in this situation.. My little boy had a much lighter nappy yesterday (we use cloth nappies and usually the one I used lasts max 3 hours, but he had it on for about 7 without any leaks) and overnight (most of the time I have to change him overnight, as he leaks, but didn't have to last night). Then today his nappy was dry until he went for a nap at around 1pm,had a little bit of wee when he woke up, then nothing until just now, before I put him to bed... He's eating and drinking fine.. He's also had a cough for about 3 weeks now (been to the gp twice, they say it's viral).. Any idea what this could be? Would you be worried?