It is perfectly possible to have a reaction to oestrogen, it is not uncommon. The problem is in the form of oestrogen that you are on. If you are on oestradiol valerate it is possible that you are not processing it correctly. You can also develop antibodies to it, an allergic reaction is uncommon but a primary and secondary response occurs in some people.
This BTW is why you need your bloods done, and any Doctor who put you on hormones and isn't monitoring your bloods should be struck off.
You need to know what levels your SHBG are and what they are travelling at, without that info, being of Spiro and the level of oestrogen is pretty meaningless. You also need to know what your liver function tests are, if you have overstimulated your liver all sorts of problems may develop.
Medics who know what they are doing would be trying out different forms of oestrogen, determining your T levels to see if AAs are really worthwhile and monitoring your SHBG and E levels to keep tuning your response.
If you are seeing a qualified medic and they are not doing that, get another medic because the one you are seeing is a bozo and has a better than evens chance of ruining your health.
JMO
Cindy