Hi. I'm also type 2 diagnosed 4 weeks ago. I've been on 50mg of amitriptyline each night for past 5 years for ibs. I did query the same thing with my gp as it states can cause high bg results. He dismissed it totally. My morning readings have now gone down to 6 or under and my daytime readings range from 4.9 to 7 depending on what I've eaten. (Lchf diet early days) So no I don't think amitriptyline affects it. I had problems with my bg for past 30 years (25 yrs before amitriptyline) during pregnancies and few other stressful times. Was always checked a few times then it went away???. Many members of my family suffer from it too so it's in the genes. 10mg and even 50mg is a very low dose.