Paints usually contain lead and lead is toxic for dogs. So, your dog might be having lead poisoning. Symptoms of lead poisoning are
1. Vomiting
2. Diarrhea
3. Abdominal pain
4. Loss of appetite
5. Muscle tremors
6. Weakness
7. Anxiety
8. Seizures
9. Blindness
10. Deafness
11. Shortness of breath
12. Increased thirst and urination
13. Loss of mental alertness
14. In coordination
15. Behavioral changes
Treatment includes
1. Gastric lavage
2. Surgery
3. Administration of chelating agents
4. IV administration of fluids
5. Anticonvulsant medicines
So, take your dog to vet.
1. Vomiting
2. Diarrhea
3. Abdominal pain
4. Loss of appetite
5. Muscle tremors
6. Weakness
7. Anxiety
8. Seizures
9. Blindness
10. Deafness
11. Shortness of breath
12. Increased thirst and urination
13. Loss of mental alertness
14. In coordination
15. Behavioral changes
Treatment includes
1. Gastric lavage
2. Surgery
3. Administration of chelating agents
4. IV administration of fluids
5. Anticonvulsant medicines
So, take your dog to vet.