Just seen your other thread. I'm glad the neurologists gave you the all clear!
Did your GP check your bloods for things like vitamin deficiencies, thyroid, diabetes?
Hypothyroidism would see you gaining weight, having constipation and feeling cold, as well as symptoms like those you've mentioned. However, a lot of conditions present with collections of similar symptoms.
If your bloods are OK and neurology's fine, your next stop might be rheumatology. Most autoimmune diseases can cause inflammation in the small joints, along with multiple other 'malaise' type symptoms and fatigue. Swelling around the bones of the wrist, for example, causes carpal tunnel syndrome which often leads to burning sensations in the hands.
It would be wrong not to mention that the same symptoms can be caused by stress and anxiety - it's much the same mechanism: over-tense muscles constrict nerves and blood vessels, causing painful symptoms. If your doctor has offered something like a short course of sedatives or beta blockers, it would be worth taking them to see if your symptoms ease.
Meanwhile, take some ibuprofen if you tolerate it well. It's anti-inflammatory and should relieve the pain.