Thank you for your fast replies.
I am going to buy a new meter, because it was not mine.
My last Hb1ac was more than a year ago at a normal bloodwork and about 5,6...
My last bloodwork was also normal some months ago when I had my last blood check because of neurological symptoms. I had slightly abnormal copper metabolism, which could not be explained but the rest was all normal...
But when I look back the last years I often had strange feelings and hunger between meals, so I always thought I had low sugar and bought a meter. The results were mostly in the 90 to 140s when I measured them. But I remember I had some periods of time, when I had fasting sugars of about 100 to 110 or spikes after an hour to around 180, then 100-140 after two hours. Then it went back to normal again with values around 120 all day long. So I didn't measure regularly for a longer time.
I am female, normalweight at the low end and 32 years old. My granddad had type 2 from age 55, he was also only slightly overweight. The last days I did more walking and ate less carbs.
I will check my values when I will have my new meter and keep you updated. If there are still many strange results I have to go to the doctor...