Freezing In Upper Back And Shoulders…Alergys or What ?

Patient: Been having realy bad chills for two weeks now..The come and go..The chills are in my upper back and shoulders only..I get under covers and takes hours for them to get better ‘ with me even laying on a heating pad..My nose inside at the end takes spells itching all thriugh the day and stays stuffed…I had these in the past but went away for years..Could it be allergys? Or something else…I just cant stand this freezing crap…Im 54 now but had them when i was wayy younger off and on…Thanks