Hello!
I had gone through your query and understand your concern.
If I were your's wife treating doctor I would try to exclude some common causes:
-Monitor the blood pressure because the fluctuation in blood pressure can cause this
palpitation sensation.
-Try to measure the pulse to see if the heart rate is high and to see if it is regular(the distance between two heart beats is even).Atrial Fibrilation causes an irregular heart rate(uneven pulse).
-Do some blood tests to exclude Anemia (low red blood cells and low
hemoglobin) and blood sugar to exclude diabetes.
-I would also recommend a thyroid check up to see if the thyroid hormones level is normal.
-The
tingling sensation in the legs might due to dietary deficiency of certain nutrients like Iron,Calcium,Vitamin D,
Vitamin B12,Folic acid.
I suggest to consult a physician and get this tests done.
For symptomatic relief you can take
multivitamin and multimineral supplement including VitB6,VitB12,Folic acid,Vit D.
Hope it helped.
Wish your wife good health.
Dr.Rovena