High Anxiety, probably after starting HRT

Post (not linking to it) by someone having extremely high anxiety about whether or not they are really trans, probably after starting HRT.

HRT will impact immune function and likely boosts immune function in trans individuals and likely causes the body to begin resolving long-standing health issues. This WILL have side effects and one possible side effect is anxiety because the body has been producing huge amounts of adrenaline for years and now doesn't know how to immediately stop producing that much when it's no longer needed.

High anxiety is caused by adrenaline. It's a hormone and part of the immune system and it can take several weeks to ramp down after something significantly improves medically.

Rosemary, dill or sage can help mitigate it. If one tried, say, rosemary triscuits and it helped, a good guess is it's adrenaline.

They also "feel like vomiting." I spent years vomiting as part of the healing process and most likely it was due to improved bile production, which is involved with both digestion and immune function.