Jay, I hope some medical magician finds an answer, or at least a solution. I feel your confusion and disappointment – my brother had a similar experience after a ‘routine’ op to remove a growth behind his eyes went wrong and he suffered a stroke. Once you’re past the ‘happy to be alive’ bit there is less excitement about dealing with everyday limitations and problems.
Somehow the brain damage has made him more mellow too tho, so a minor blessing in acceptance.
I wish you many blessings on your journey through this challenge.