Fatigue, sometimes foggy memory, lower back & headache pain, occasional chest pain?

Female, aged 51
Fatigue, sometimes foggy memory, lower back & headache pain, occasional chest pain with difficulty breathing, chronic nearly daily headaches sometimes severe migraines.
Any ideas of what is going on and what I should do now?

Kidneys functioning at less than 50%, EGFR has since dropped 7 more points and creatinine has risen again since the above 50% figure.
Right kidney smaller in size,
Both kidneys irregular edges – not smooth.
2 different ANA+ tests,
homogenous,
Urea Nitrogen (Bun) 20,
PTH at 51,
Albumin 4.8,
AST high 40,
Chloride 100,
Calcium high at least 3x in a row 10.4, 10.6, 10.9 which could indicate parathyroid tumor.
Potassium too high 5.9
Platelets 475,000
Diabetic 180
Sodium 136
Erastase 2+

Thanks