The answer is "yes". Small fibre neuropathies often also involve to some extent, autonomic dysfunction such as what you are experiencing.But this also depends on what nerves are affected too.There are a few of us here who have small fibre neuropathies with autonomic issues. Though as Glen always says the autonomic issues are often mild and subclinical.

The autonomic nervous system involves functions that are not directly under our control such as bladder & bowel functions,BP,heart rate,gastric emptying,sweating and so forth.

You have predominantly small fibre PN with some autonomic involvment. This is not uncommon. I suggest you google autonomic pn and read up on the problem. But on a brighter note since pn symptoms change often, the problem may correct itself just as quick as it came on.