Bit of a backward step today, she's been doing so well. She's going off her food again

Turned her nose up at cucumber and carrots today. She was a bit off a week ago last thurs, and seemed to perk up after vet visit, so I'm pretty sure it's not the meds as she's only on volterol, and has been for over a month now with no side effects.
She was fine last night, ate up all her greens. Here's hoping it's just a glitch like before and she'll be fine again tomo.
Just given her and her sisters a great big pile of grass and dandelion leaves and she's munching away at that

Luckily Oh has been on a veg run today and brought some pak choi (which the little monkey won't eat today) some lettuce (she's entertaining that) and some apple (won't find out until later)..
She's still eating her nuggets and timothy hay, so not a total refusal to eat, just a red card..
I did notice this morning that the fridge temp is low, so perhaps she's got a chill on her tummy? Plus it's colder in general, so will be sticking the heating on again later, to make sure she's warm enough over night.
I gave her some probiotics in water this morning, she supped 3 full syringes (well most of it, it kept dripping down my hands..)
We mostly have good days now though, she's been well for a month now, so hoping this isn't a slippery slope 8...