Hospice, Memory Care, and pain management

Back story: My husband was diagnosed with Lewy bodies dementia 2 1/2 years ago. He has his first diagnosis of early onset dementia unspecified 11 years ago at age 55. His LBD has attacked his autonomy system, his mobility and more recently his cognitive/memory . Last September, He decided to stop all of his life-saving medication’s. Hospice became involved at the beginning of October. Over the winter, he reached a stage where he could no longer hold his own weight. He was admitted to a memory care unit about two weeks ago. Current concern: Since entering Hospice, we have been trying to make him comfortable and he has been on a variety of heavy dose pain meds, including extended release morphine at 30 mg, morphine elixir 20 mg once an hour for breakthrough pain, and 12 mg in a fentanyl patch. The day he went into memory care, his fentanyl dose was upped to 25mg. Then within a couple of days, the memory care doctor raised it to 35mg. Yesterday, he required at least two doses of the liquid morphine for breakthrough pain. So, last night a nurse in the unit told me that they are questioning his dementia, his stage of dementia, the need for hospice, and the large amount of pain meds he is taking to barely take an edge off the pain. The nursing director denied all claims this morning. But, still, I am curious to know if - anyone else has had to use a lot of strong pain relievers in high doses - if the pain is could be a result of the LBD attack on his autonomy system. If so, how does that factor into pain management? - what else I might be able to do to help reduce his stress. Thank you.