I had bloodwork done on my thyroid b/c I have symptoms of hyperthyroid (i.e. sudden onset of racing heart rate, high bp, sensitive to heat/overheating, palpitations) but those tests came back normal. And I have other symptoms, such as headaches and a sense of heaviness in my head, depression, anxiety and panic episodes/paranoia of having a panic attack (even though I have NO history of depression/anxiety or panic disorder) and also a decreased sex drive and fatigue, even though I get a full night's sleep. And what came out of my bloodwork was not abnormal thyroid levels, but a high calcium level (calcium level was at 10.0 normal range 8.5-10.1 mg/dL and my ionized calcium was 1.38 normal range 1.13-1.32 mmol/L) along with low magnesium level 1.76, normal range 1.80-2.40. Does low magnesium levels cause high calcium levels in the blood, or are my high calcium levels b/c of a parathyroid dysfunction? Should I get a PTH blood test done? My doctor didnt show any concern for my calcium levels, but rather she was concerned about my magnesium levels and put me on a supplement. And if I should get a PTH test, should I get another doctor? please help! These symptoms are getting worse everyday, and they are interfering with my daily life and I just want to feel better:(