Hi Cyt,
Sorry you need to be here. I cannot imagine how difficult your situation and I do hope it's something reversible. Sadly, 57 is not too young for early onset Alzheimer's. Also sadly, no matter how long your husband has done his job, that ability and understanding will disappear at some point if it's Alzheimers.
My little mother had Alzheimer's but it didn't start until she was about 84.
I also say you must start with a doctor. It can be more affordable if you live near a teaching hospital or the VA if your husband is a veteran. Whatever ruse you use to get him there, he must be tested and examined to find out what is going on. If it's a reversible problem, that will be a great bonus.
If you read back through the posts, those by Beginning address her situation which is very similar to yours. There is lots of good information here, practical suggestions, and just hugs and support.
If you're must be here, you're not alone on this most unwelcome road. Talk and vent as needed.
Wishing you well - Barbara