My 10 year old golden lab was acting like I was going to hit her when I was trying to pet her and parking at nothing before she let me pet her she ran from side to side was she having a seizure?

It's unlikely that your dog was having a seizure based on your description. The behavior you observed—acting fearful, barking, and running side to side—could indicate anxiety, fear, or stress rather than a medical condition like a seizure. It's important to assess her environment for any triggers that might be causing this behavior. If this continues or worsens, consider consulting a veterinarian for further evaluation.