30 year old. Osteoporosis. PTH fluctuates.

Long story short I've felt like crap for about 3 years. I've seen gastro Drs about abdominal pain and lump in throat feeling. Neurologists about headaches and neck pain. Endocrinologist about weak "low blood sugar" feeling. Nothing has been done. So 3 months ago my knee starts hurting. I went 2 weeks ago for x-rays and it shows osteoporosis. I just had an MRI since the pain isn't due to osteoporosis. At 30 years old and I'm male! They finally ordered testosterone and pth along with metabolic panel blood tests. IDK what my testosterone level is yet but my PTH is 63 pg/ml. 18 months ago this was 41 pg/ml. The lab range is 12-76 pg/ml. Now I'm sure the Drs will say it's normal since it's in range but is there any significance to that fluctuation? My calcium has been checked many times always around 9.3. Once it was 9.8. any input is greatly appreciated.