Hello
Thanks for posting your query at DoctorSpring.com
I have gone through your question in detail and I can understand what you are going through.
You husband is having a sudden onset headache with a confusional state and memory disturbances. The fact is that he is 53 years old patientold and this age, these symptoms point to an organic etiology. These may occur due to stress but ti would be wiser to rule out the organicity first. You should take him to ER and he will require a CT scan of the brain. Some strokes can present with similar findings. He may also require some blood tests like serum electrolytes complete blood count.
If all the tests come normal only then the stress hypothesis should be thought of.
Hope this helps
Kind regards
Dr. Srikanth Reddy MD