I agree with MRSD as well, in that it could be temporary due to deconditioning. Deconditioning can occur in as little as two weeks. If you can get out to walk or get to the gym, and try light weights or swim, you may feel better. Do it consistently. Be gentle tho. If you don't feel better, trust yourself and talk to your doc, assertively and calmly.

Since you have neuropathy, likely idiopathic, you could be in a preclinical phase of whatever it is that is causing your neuropathy. It could take a while for a clinical picture to emerge.

Since you are young, if it is not a hereditary neuropathy, there is some cause, somewhere.....eventually it will likely emerge. Hang in there.