Ik this is old but,
Trans is when someone born as (for example) a male later in life identifies as a female. This can go either way. Its more complex than that, so make sure to do research about it. Some nonbinary people also identify as trans, such as myself :)
Ahhh mental health reasons.. il say exactly why later. Ill be active (w/art!!!) on the socials in the bio. Feel free to message me on those! I enjoy talking w/ yall (especially my closer friends on here!!) so yeah.