I am trying to come up with as much information to give the doctor before my hospital appointment in February when I speak to someone about endometriosis, and I know that one of the symptoms of endometriosis is being irregular. I didn't think I ever was, I guess because I never paid any huge attention for the most part, but I came across an old diary from 2006-2008 with the date I started my time of the month, and tonight I counted how many days between each date. I don't know much about what is considered irregular, but this is the amount of days I counted for each cycle-

26, 36, 23, 28, 30, 29, 27, 32, 26, 30, 29, 31, 30, 31, 33, 29, 28, 27, 28, 29, 28, 29

In the last 7 months of what I wrote there seems to be a bit of a consistency, but after that I kind of gave up on writing the dates. Would this be considered irregular or somewhat normal? I know that it's normal to be off by a little.

Now that I'm on birth control I can't really count the days anymore, so I have to go by what I wrote down years ago.