Gfr decreased to 40 but only trace protein in urine. would this still be ckd?

Need more tests,,,: A trace protein in your urine isn't bad and GFR can be low in certain groups of people and in older people with less body mass and those with low fluid intake. You're also on many meds and have symptoms and signs pointing to an autoimmune issue (raynaud's). This alone might cause CKD but more renal tests (bun, cr) would be needed before making such a diagnosis. Good luck.