Yes, I have heard of pets comming on contact with chemicals in the yard wet or not wet and have some down with neurological signs and tremors of sorts. The probelm is that the grass and so forth do not have to be wet in order for the pet to contrcat some of the chemicals. Your baby could have munched on some of th treated grass and gotten it into his system that way also. It is good news however that the bloodwork dsid not show any signs of abnormalities. I would consider though taking him to the specialist especially if you vet has recommended it. If finances are a concern you should try and contact Care Credit. They finance vet treatments and billd when you are not able to right off the bat. They issue you like a credit card and you pay it back like a credit card. I think seeing a specialist will be your best bet to get your baby back on his feet with a full recovery that has no lasting effects.Here is a link to Care credits web site. I would check them out as they may be able to help you finance hsi treatment.