DS (6 months) has been a bit unwell since yesterday, and I'm wondering whether to take him to the doctor. Symptoms (which may of course not be linked) are as follows: fluctuating temperature (36 to 38.1), very pale skin on face, eyes a little red-rimmed and slightly puffy, unusually tired (couldn't keep him awake a couple of times yesterday, and keeps rubbing eyes and face), unusually grumpy, maybe a bit sickier than normal. I've also just discovered that the tip/underside of his penis is red and sore. I'm probably worrying about nothing, but it's the first time he's been unwell, so I guess I'm oversensitive.
Can anyone offer a diagnosis or some advice? And should I take him to the doctor?