My cat boobies are swollen?

At first I thought they were tumors, we took her to the Vet and she said it's boobs which were swollen due to the heat. But very soon that she is spayed she keeps on having swollen boobs and acts close to if she is in the heat. I yearning I could believe doctors but every one tells a different story than the other. Anybody with similar cases on their cats?
Answers:    same problem.took her to the vet said it was nil to worry about.they told me to try a diet to shrink them up a bit.they told e some females cats grow boobs after being neuter because there hormones go crazy.i even went to two different vet and they both had similar answers.if ur worried go to a different vet for a moment opinion.
Since when cats have boobs?? Hahaha
Does your cats do this.?   Ok please, comfort. dog or cat?   What to do beside a litter of neighbor's unresponsive cats on my property?   Traveling on a plane next to my cat.  ?