I created a Microsoft excel file where I keep track of literally everything. I started this in 2014 when I started my transition.
On a daily basis I write down my sleep and wake up times, times when I take my medications and dosage, even in which leg I injected and when I replaced my vials, my body temperature and weight.
A few times in a month (3 or so usually) I measure my waist and breasts and take my blood pressure. Before my GRS I even measured my "P" size. (hoping desperately for shrinkage)
Every time when I noticed an emotional or mood change, or when I noticed a sexual change before GRS (no sperm, or feelings) I wrote this also. After GRS I started to write down how my climaxes went. Also trying to find a relationship between feeling sexualy and hormone injection times.
Next to these obvious info, I also kept track of all my medical/mental/voice and hair removal appointments. Dates/hours and cost.
My lab results, even wrote down the results as far back as I could find at my dr. office.
All my insurance claims, cost they paid and my pay etc.
All addresses and info from my medical "team".
My legal transitioning; all paperwork cost and date completed, including scanned images of the documents.
I also took pictures on a monthly basis documenting may facial changes (scalp hair growth and beard hair removal), breast growth and GRS.
And of course with all the info I created tables with totals etc. Also plotting things in graphs.
I have probably forgotten some things.
I did not photographed my body size and weight, as I started dieting before I came out and my transition. I was 240, went down to 189, now currently 200 lbs.
Its all located on a memory stick and in my computer. When I started hrt and went for my GRS consultation I was able to show the doctors my medical info, I even printed out my most important info to carry with me to the hospital, just incase something happend.
Now after almost 4 years I am getting a little tired of keeping daily records but I keep going. My picture taking has become less since changes in appearance are not happening on a monthly time anymore. My laser hair removal is long finished, scalp hair is grown and my electrolysis and breast growth I photograph twice or three times a year.
Nice to look back at how it all went.