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this burning, cramping, and weakness in arms are suggestive of some vitamins/minerals deficiency.( for hips please rule out any cause like piles) please take proper diet inclusive of plenty of vegetables, fruits, juices, peanuts, milk, meat and fish are good source of iron and B12(meat liver
). i hope your problem will be solved. now a days ready vitamin supplements are also available but a bit costly. if problem not resolved within few weeks then you need to undergo proper examination by a physician.
burning is also a common symptom in diabetic neuropathy
I hope I answered your query. Wish you good health.