I'm so so sorry for your loss
I too struggle with not being able to go in the vets, some times I don't even get to speak with the vet at all just a nurse or receptionist, my senior cat with complex medical history went in for x rays, saw a nurse at drop off and again at pick up, she was diagnosed with arthritis but due to her other conditions and medication they weren't sure what pain killer to use or if they'd need to change her other medication, I was told this by a nurse then radio silence for a few days while she continued to not eat amongst other things, so I sent a rather grumpy email saying I wanted to speak with her vet as I didn't know what issue was causing what problem or how to help her and i wanted a full check up for her as well as the x Ray (which I had td the vet) and queried whether she'd also had the checkup as the nurse didn't know! I eventually got her gabapentin sorted and clarification that she had the check up too but still didn't get the vet to speak to me. I was an emotional wreck and worried about quality of life the whole time and also rather furious with the vets! its completely unfair! Sending huge hugs you do such an amazing job, be gentle with yourself