For last 4-5 years, I am suffering from low grade fever,
wasting of skeletal muscles and spasm of back and leg muscles
and weight loss.
feeling of low grade fever is there, although thermometer reading may not support it.
I feel I am having some hypermetabolic state. otherwise my investigations for diabetes, thyrotoxicosis , EMG, NCS and PUO are with in normal limits. Can you suggest differential diagnosis for ( low grade fever + muscle wasting+ muscle spasm)