can flu cause pn .had a bout of flu for 2 weeks and started getting pain at first in both knees and elbows but after a few days was getting mild burning back of calfs and fore arms now cant lean on my elbows and hands are tingling the burning is worse after a shower or bath doctor says its just affects of the flu infection and has give me Neurontin 3 tabs a day .would pn cause the symptoms as quick and in as many areas as this has ???