Hi everyone, I am new here but just looking for a little bit of advice. I am 19 years old, fairly tall and overweight and have no prior health conditions. Recently my friend purchased a blood sugar monitor, one where you prick your finger. She tested hers and it was perfectly fine but i have tested mine several times and over a period of a week and from what i can find online I am not sure its ok. The normal readings I have are between 5.9-8 mmol/L however my lowest reading was 4.1 and my highest reading 10.1. My last test was today three hours after eating, I had a reading of 8.5 mmol/L. I have read how to do it online and pretty sure I am doing it right, washing my hands before use etc. I also think the machine works well as it had good reviews online and my friends was fine every time she tested. I just have a few questions... firstly do i need to go to doctors? If it is suspicious is it more likely to be type 1 or type 2 or pre diabetes ? and is there any symptoms to look out for? Thank you so much Freya.