I defended my Master's thesis last year and continued on to pursue PhD in the same university under a different adviser. My Master's thesis adviser and I were getting ready to present a paper pertaining to the MS thesis at a conference in two weeks. The paper is already accepted.
Earlier this week, in preparation of showing reports at the conference, I started re-running my Master's thesis code to obtain fresh reports. The results gave me the nastiest shock of my life. The new results I was getting were a magnitude off from the results I had before. I could not believe the new results. Thinking that I had done something wrong in the current run, I re-ran my previous projects which I had used to obtain the results for the thesis document and defense. Even these runs gave me the same results as the new results I was getting. When I dug into it further I realized that I had misinterpreted the value of a single variable which changed all my result values by a magnitude. This reverses half of the conclusions I made and slightly alters the rest. I immediately emailed my adviser for a meeting to discuss this issue. I am meeting with her next week.
In the meantime I am panicking that my adviser or the school board might think that I deliberately presented the wrong values since I was getting better results. I am scared that they might not see my mistake as a mistake or even if they do see it as a mistake, they might take some strict action like revoking my MS degree or suspending me from school or even expulsion. I am panicking. Please advise. Thank you.