Having bad anxiety for 15 years.tried meds and therapy didnt work.i now get low grade fever(99.6),sweating+chills for months.doc tested few times for autoimmune,cbc, thyroid,inflammation, stool+urine and all are normal.can this be due to anx?

Maybe. Maybe not.: Hard to guess. A person who has health anxiety transforms many normal bodily sensations into symptoms to talk about. A likely majority of the symptoms arise from sensations that are normal and ignored in non-health-anxiety people. Therein lies the enigma. The solution is to treat the health anxiety issues, after which the symptoms that remain shall more likely be due to illnesses.