You really need to involve hospice. They were great for my husband, He claimed not to have pain but I found that hard to believe.On her first visit, I told the hospice nurse that I was afraid my husband was lying about not having pain. She checked him out, watched his face carefully, listened for tell-tale sounds. Then she said he was NOT in pain but that he was agitated. She told me to give him two oxys to help him relax. He dies quietly and peacefully an hour later. How grate I was that he was calm and peaceful at the end. If the hospice nurse had not told me what to do, it might have been very different.
The hospice personnel know what they are doing. They can help with pain, anxiety, sleeplessness in a way that you alone cannot. They have time to devote to you that a doctor does not. Please call on them as soon as possible, for your sake and your dad's. Don't wait. My husband was much closer to death than I realized. Even though she came only once, I'll forever be grateful to the hospice nurse.