My little baby...

So about 2 weeks ago, I was laying in bed with my little baby Patton, rubbing her tummy like she demands, and I noticed that she had some small, squishy lumps in her lower tummy. I pointed them out to Dom, freaking out, and he said she has always had them and not to worry about it. So I calmed down and kept an eye on them. Last week, anytime we touched her lower tummy, she whined and cried...which I don't like to hear. I started feeling around for the lumps, and they were bigger and harder then they had been and they obviously hurt her, so I started freaking out again and called the vet to have her checked out and to get her current on all her shots. We took her in yesterday and the lumps are smaller and softer then they were, but she was freaking out when the vet was feeling them. They decided that they needed to stick a needle in them and pull out fluid to see if they could tell what they were. They had to take her in the back and when they stuck the needle in her, I could hear her cry, I almost lost it! They brought her back in, scared out of her mind after being stuck with 5 needles, and said that the lumps were so sensitive that they couldn't get very much fluid out of them, so they didn't know if they would be able to get a good idea of what it was. They came back in and said that the red blood cells are all inflammed and so they want to treat it as an infection and see if antibiotics will take care of it. The vet said if the antibiotics don't work, we can have a biopsy done, which scares me! After hearing all this, Dom and I decided that it was time to get her fixed, we've been meaning to for a while, we just haven't done it. She also needs to get her teeth cleaned, so we decided to schedule her for those two procedures since they can be done at the same time and it's just time. So now, my little baby girl is going to have surgery in a week and a half. If the lumps aren't gone, I'm going to tell them to just take them out. Having my puppies in surgery scares the crap out of me. I was a nervous wreck when Daisy had surgery. My baby is going to be gone all day...I have to drop her off at like 7:30 AM and I don't get her back till around 5:30 PM. It also scares me because I know that things can go wrong and I don't want anything to happen to my baby. I also don't want her to be in pain. So now, for the next 2 weeks or so, I'm going to be a worried mama.