I highly recommend isotretinoin (accutane) for hyperhidrosis. Its primarily prescribed for zits, but off label for hyperhidrosis. Its not fun when you're on it but the changes are seemingly permanent. A full year after completing his treatment and my husband is still much less sweaty and his skin is much clearer to boot.
Talk to your dermatologist!
Except there is no choice involved. Its not "becoming trans" anymore than its "becoming tall" or "becoming gay". Those are all things you are born with. Now a trans person may choose to medically transition or not; they are still trans either way. "Trans" and "cis" are adjectives and both are things you are born with regardless of what you do about it.