I'll get right to the point. Felix was having what appeared to be asthma attacks so I took him to the vet. She said everything sounded good but I pushed for an x-ray. Still didn't show anything. Just a very small amount of grey area. I was given 10 days of antibiotics but he had a really violent attack last night. He couldn't breathe well for several seconds and I didn't know what to do. He's had a lot more energy since he's been taking the antibiotics but this attack would prove that he's not better, correct? I don't know what to do at this point.