Russian Dwarf Strong Pee

[RolyRocks]

Hi Guys,

I have had my adorable Russian Dwarf for 2 weeks now and I have a question about his pee. He is definitely doing it in his wheel every night but the smell appears to be getting stronger. I have to wipe it down roughly every other day but this morning it smelt like very strong popcorn, is this normal? To be honest I have no idea if he is doing it elsewhere, he probably is, but since having him he has made about 3 different nests and I really don't want to disturb them just yet.
I have also noticed the last few days he hasn't really touched the food from his bowl. By the morning the food I have scattered appears to be gone and his Naturals Mini Rodent stick is definitely being chomped on, along with his Whimzee.
I am a little worried that me taking his wheel out so often to clean is possibly making him stressed. I do it during the day when he is sleeping but if it is a little damp I leave it out for a while to dry before putting back in.
Also, he appears to love wanting to climb onto my hand or arm but he also wants to have a good nibble! Nothing hard and he has never punctured my skin, but is this friendly behaviour or is he trying to tell me something? He was already 8 months when I got him and used to being handled.

I will try and get a picture soon as he really is a super cutie! And I have named him Loki (as he was in lockdown at the pet shop!)