Hello.
Thank you for your query at DoctorSpring.com
I understand your concern.
You do have isolated symptoms and hence making a diagnosis has become difficult.
Its a good thing that DVT has been ruled out, since it is one of the serious possibilities.
Now the pins and needles sensation can indicate a vitamin deficiency. But you also have swelling of the ankles. Now that can be due to constant hiking and it should settle down on its own once you rest adequately. The other possibilities are lymphedema, but in absence of other symptoms it does not look probable.
All your symptoms together point towards something called Raynaud's Syndrome. It is more common in women and is triggered by cold temperatures and stress. Have you been exposed to cold temperatures recently? Mostly it is a self limiting disease and should recover on its own. In most cases where Primary Raynaud's is said to be identified, the patient is advised to reduce the exposure to cold temperatures and avoid stress. In some cases though with persistent exposure, it can lead to severe vasospasm, which is severe reduction in blood flow to the peripheries ( hands and legs ) and can lead to ulcer/ gangrene.
Now we need to carefulle evaluate you. Most patients with Raynaud's present with pins and needles and pricky sensation mostly all along the limbs, can feel ice cold even if the temperature is normal, and observe bulging veins. If possible you can get a Doppler of your lower limbs just to rule out insufficiency of blood supply. It will give us a better picture of whether you actually have Raynaud's.
Please do not worry,as most attacks are self limiting. Only when you keep getting persistent episodes it needs to be evaluated. However it is advised to avoid too cold temperatures and stress, which are the predisposing factors.
So if possible get a doppler and also upload the results os the tests that have been carried out.
One distant possibility apart from the vitamin insufficiency and Raynaud's is a pinched nerve syndrome, where due to compression of the nerve such pins and needles sensation is felt through out the limbs. But that doesn't explain the ankle swelling and the swelling in the wrist. Hence it can be ruled out. The swelling that you have experienced can be due to stasis in the blood supply leading to localized edema.
So kindly get a doppler of the lower limbs for a clearer picture.
Hope this was helpful,
Regards.