is it possible for a rabies shot to make a dog sick?

My dog has a tumor in her breast, i was told by her doctor that it was cancer and that it would be extremely expensive to remove, he told me that it didn't seem like she was suffering, but eventually it would rupture and we would have to put her to sleep but since she wasn't suffering that he didn't think it was necessary to put her down.Ever since she has had her rabies shot, she has been crying and laying around. Do you think this could have done something? Can a rabies shot make her sick or maybe make her cancer spread or something?
 
Back
Top