Any caregivers going thru excessive drinking with the spouse with MCI

My dear husband has started drinking large amounts of beer recently. He was never a big drinker. I recently went back to work parttime. I came home yesterday, and he had a receipt for an 18 pack of beer (. I have a jar that all receipts for expenses go into). He is good with following that.
It helps me track of my credit card statement.
He has a refrigerator in the garage for the beer. When I got home, he was just sitting in his chair. No dishes done, no house stuff cleaned up. Dog wasn't fed. Found that odd.
I checked the refrigerator, and he has consumed 11 beers. He didn't act inebriated. I made dinner and he went to bed and woke me up with severe heartburn and started throwing up for an hour.
This is the second time in 2 weeks this has happened
Anyone else experience this behavior.