I have been told over the years....idiopathic, hereditary, and now that my ANA finally went sky high....autoimmune. I am getting IVIG.

Sometimes things evolve over time.

I went without treatment for some time. Some times I was on IVIG, at one time steroids (never again).

I am back on IVIG and it appears to be making a difference, since I am off all pain meds.....altho I am a sloth. I am not doing much.

See if you can just see the doc every 6 months...you don't know what will show up at some point in time.