Hello and welcome to the form. First, I think it is fantastic that you are concerned with your health and have goals related to such. Your morning readings are, as you know, normal. To clarify, you are saying that your readings as of late are higher than 100? How long has that been happening? I assume you are under a doctor's care? There is actually some data to support a rise in glucose levels with covid 19. https://www.webmd.com/lung/news/20200713/covid-19-may-spike-blood-sugar-raising-death-risk#1 It sounds like you are within a normal range regularly. I would continue to work with your doctor for guidance. And would guess this is situational. However, continue to monitor. Losing weight is helpful. And lifestyle plays a role as well. Here are some tips in this article-- https://www.webmd.com/diabetes/ss/slideshow-avoid-damage
Let me know what you think. Best of luck to you.