Is it possible that your estradiol level shot up as well? E2 will latch on to Test. receptors and fool the body into thinking it's got enough. That can be one of the factors involved in shutdown.
By the way I am on TRT. Also use HCG to attempt to preserve what function is left and Arimidex to...
The Organon Pregnyl HCG that I use comes with bacteriostatic water as the diluent. The package insert says *60* days. If you're not using bacterostatic water (not the same as sterile water, by the way) then you need to use it immediately. Pregnyl comes with the diluent.
edited to add...