advice

Hey all.
Well i had the pup a walk and met another puppy i know so both were rolling around biting each other and jumpin on each other and just general puppyness!
So the past few days we have noticed bumps all over her especially at neck and side, its like little hard spots so i was thinking maybe just from the other one biting her????? Any thoughts?????

They dont seem to bother her but i was just worried maybe as shes blue/brindle ish that it may be allergy?

Could be a number of things, are you able to get a photo of the bumps ?

Thanks for reply.
Well u cant really see them theres no hair loss its really when u stroke her you feel them. Shes due a her puppy check up soon so will mention to vets.