No... neither is the wikipedia. I am just a PTSD sufferer who has studied everything PTSD for a lot of years... about 6 years now actually, so I tend to know PTSD and surrounds pretty good IMO. I have also been taught and advised by some of the leading mental health physicians in the industry on PTSD related matters, all the way up to the US National Center for Posttraumatic Stress... through my own self work to educate and understand at the doctor level, but I am not a doctor. Ask me about schizophrenia, and I will tell you my knowledge is zero. Ask me about anything PTSD related, and I could 99% chance answer you of the top of my head. I also try and remain as current as possible with all the current studies surrounding PTSD in order to run this website.
If I became a physician, this site would not exist due to the legalities when formal training has been undertaken and information provided via online means. A medical site as an example, WebMD, they have disclaimers everywhere, on each entry, for anything medically related, because the person has qualified training and thus a duty of care for information they provide. Unfortunately, it would destroy this site if I got qualified at doctorate level.
As above, Jen found the answer by looking at the relevant information on what occurs with the blood vessels during stress / panic attacks, being it restricts from the other limbs to pump into the primary organs first. This natural event within the body is the reason why it may seem like something is wrong in the hands or feet, but then returns. If you constantly get into a nasty cycle of stress created each time by concentrating upon the symptoms, then you can believe something is wrong that is not, when in fact it is PTSD in the first instance.
This is why, symptoms are not worth treating in PTSD, because you will be at it a long time. Treat the cause, the symptoms dissipate quickly enough.