I don't know enough specifically about Boxers, and have never owned one, so am unsure what problems like this they have.
I do think a good idea might be to have a video camera at hand next time anything happens, so you can shoot them during one of these 'episodes'. It might help the vet make a diagnosis.
thanks but it is not all the time and the 8 year old has just started taking them i saw something on tv that was a disease that boxers are common to get and it is like a brain tuma but i dont know much about it thanks for your support and help cino517
Maybe both dogs have a form of epilepsy? I think you could get epilepsy drugs from your veterinarian. But they may have to take them from here onwards, every day. Take both dogs in to see the vet, describe the symptoms, and see what advice they give you.