Denby Dale viaduct

This afternoons walk was in Denby Dale. We didn’t go to look at the viaduct but we did go because Darren wanted to book me a vets appointment.
I have a small lump on my right side, it’s quite soft, it’s underneath the skin and it moves when Darren feels it. He first noticed it this Tuesday and as it hasn’t improved and he’s doesn’t know what it is he felt getting an appointment at the vets was important. Unfortunately the earliest I can be seen is next Friday which means Darren will be worrying and constantly checking me to see if it’s getting bigger until I’m seen by the vet.
I’m not poorly or anything, infact everything is normal apart from this lump. Hopefully it won’t be anything serious.