Welcome @suchadoc, You sound a lot like me years ago when I first started having neuropathy symptoms only I didn't have pain as a symptom, just some numbness and tingling. My wife told me I walked like an old man even when I was in my 50s and younger. The answer is different for each of us as to why we would want to have the tests and get a diagnosis. Although there is no cure, there are treatments that may help with the pain. Neuropathy Commons has a good explanation of tests that are used here - https://neuropathycommons.org/diagnosis/diagnosing-peripheral-neuropathy.

I myself didn't think the EMG and nerve conduction tests were painful but they were a little uncomfortable. I didn't have a skin punch biopsy so can't share any experience. There are many things you can do to help improve your quality of life. I do think PT can help with balance issues. I've had a few sessions that gave me exercises I can do at home that help some with balance. You might find some good suggestions on the Foundation for Peripheral Neuropathy website here - https://www.foundationforpn.org/living-well/.

There are quite a few discussions on what helps with neuropathy. Here is a link to the discussions and comments from other members - https://connect.mayoclinic.org/search/discussions/?search=neuropathy%20what%20helps.

Can you share a little more about your neuropathy symptoms?