I changed my gender at around 25 because I had significant issues with my voice, my body, and my genitals that caused me significant distress and interfered with my life, but they were present and ever increasing pretty much since I hit puberty. I knew something was wrong from an earlyish age, and dealt with it pretty much just when my husband was okay with it. I’d always envied women for their natural sex characteristics, and if I didn’t get a negative reaction when I came out as a teenager I would have transitioned much earlier.

I think if you’re happy in your body, you probably don’t have to worry about being trans. From what you’ve said here, it sounds to me like you probably aren’t.