Hi Christian4ever

Welcome to NeuroTalk - I hope that you find the community as knowledgeable and supportive as I have.

I am sorry to read about your mother. From what you have written I guess that she has been diagnosed with Type 2 (not Type 1) diabetes because people with Type 1 diabetes need regular (usually daily) doses of insulin to stay alive. Apart from that you wrote "She [...] stopped taking any [...] insulin for years" - somebody with Type 1 diabetes would die if they did not take insulin regularly, on a time-scale much less than years.

You could encourage your mother to find a health professional with specialist knowledge of Type 2 diabetes. A specialist will be able to work with her and discuss treatment/management options (there are many possibilities).

As far as her nerve pain is concerned, this might be peripheral neuropathy which has many possible causes.

It might help if you posted in the NeuroTalk peripheral neuropathy forum about this. There are many active members there who should be able to offer you suggestions and support.

All the best.