Wanting to Not Feel the Pain Leading to Dark Thoughts?

First, I apologise if this breaks any rule. I went through them twice, and it seemed to fit.

Did anybody else begin to experience fatalistic thoughts when you realised that you were dealing with chronic pain, not acute pain?

To be clear, I'm not actually contemplating ending things. For starters, I am financially responsible for my mother's care, and if I am not around, I don't know who would manage her care, which is in a nursing home, but still requires my attention, and money. Also, I have a lot of things I still want to do in life. Finally, after six months of this, I've only been seeking treatment for two months and have not yet begun pain management. I was first seeing specialists, three in all, who cannot find any acute pathology to account for the pain that started in my upper right arm near the shoulder, gradually expanded to more of the arm, then the neck, and is also combined with powerful anxiety and sleeplessness.

Sometimes it hurts so bad that I just want to end the pain by any means necessary, even though ending things is not an option.

Can anybody else relate?