Question from United Kingdom:

I was diagnosed with reactive hypoglycemia few years ago, with two or three drops in my blood sugar daily, mainly mid-morning, after breakfast. I have a constant fasting blood sugar of 4.7 mmol/L [85 mg/dl] with drops in the 3s mmol/L [54 to 71 mg/dl] and sometimes 2s mmol/L [36 to 53 mg/dl]. This last four weeks, when I got shaky and sweaty, I checked my blood sugar and it was 12 mmol/L [216 mg/dl]. Since then, I have noticed all daytime levels are a lot higher than normal, 7 mmol/L [126 mg/dl] to almost 10.0 mmol/L [180 mg/dl]. I went into local chemist who was testing and they checked my blood sugar an hour after eating a ham roll and it was 9.4 mmol/L [169 mg/dl]. My husband, who ate the same, was 6.3 mmol/L [113 mg/dl], They asked me back for fasting level.

I have checked my fasting blood sugar level over the last two weeks and it was constantly 7.2 mmol/L [130 mg/dl]. One morning, when it was 7.2 mmol/L [130 mg/dl] fasting, I went to the chemist, a five minute drive. My blood sugar had dropped to 5.6 mmol/L [101 mg/dl] in that short time, no pills, no food or drink. I went home and checked the glucose meter–yes, it was 5.6 mmol/L [101 mg/dl], so the meter was okay. I have since checked my fasting blood sugar and found it to be 7.1 mmol/L [128 mg/dl] or 7.2 mmol/L [130 mg/dl]. If I go to the doctor, by the time I get there it will have probably dropped to 5.6. Is this normal? Have I got a problem? If I go to the doctor, will he understand what is going on?