There isn't an endocrinology forum - I apologize for hijacking this one. For the last 15 years I have experienced headaches & extreme fatigue on waking. I never have a restful sleep. I am female, 39, non-smoker, non-drinker, 5'8", 150lbs. I don't drink much caffeine - just a small cup of coffee in the morning.
I have undergone several tests to find the root of my fatigue. Sleep test ruled out sleep apnea. Most blood tests are normal. One thyroid test pointed to the pituitary: TSH was not raised (0.86 mIU/L) in conjunction with a low FT4 (8.2 pmol/L). ACTH, prolactin, FSH & LH tests at that time were normal so my doc didn't follow up. B12 & ferritin have both been low in the past, but supplementation didn't help my morning exhaustion. I have benign nodular hyperplasia (based on thyroid ultrasounds).
I've noticed an odd pattern for me... if I wake around 4am or 5am (which I do often), I am tired, but the bad headache isn't there. I often wake sweating. Then 2 or 3 hours later when I wake at my normal time, I have a headache in my temples & eyes which feels like my temples are being sucked into my head. It takes a couple of hours for that headache to subside.
I've read about dawn phenomenon and somogyi effect, so I have been trying to monitor my blood sugar. There have been a few low-ish fasting blood glucose results (from a home monitor), for example 3.5 mmol/L. I had one AM cortisol blood test about 5 years ago, which was normal (280 nmol/L). One GH test was normal.
This morning my glucose at 4:24am when I woke as usual was 4.6 mmol/L, & again I was sweating, but no severe headache. At 7:44am when I got out of bed, it was 4.1 mmol/L & the temple headache was BAD. I'm not sure what's waking me early in the morning (4-5am). I'm wondering if it's low blood sugar & the sweating & waking are a result. I thought blood sugar is supposed to rise in that 4am to 8am time period, but mine doesn't.
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