I Have A 7 Week Old Doberman Pup. He Recently

I have a 7 week old doberman pup. He recently hasn't been eating well, and I was told by vet to keep an eye on him for parvo when i took him in for shots earlier today. However, he just started having seizures. He has had two already and very bad ones. Now he gets up and walk around as if he is drunk, and then plops over. Its has been over ten to fifteen minutes that he has had his last seizure and he is still shaking. Also, when I look in his eyes he looks very "out of it". Any idea on what it could be or what i should do?