More SHBG means more non-bio-available SHBG+T that inflates your TT number and liver clearance rates of SHBG+T could change.
Post the rest of your labs, do not assume that they are not important to this question.
With injections every day, lab timing effects should be nil for TT and FT. E2? -perhaps an issue.
What is 10iu hCG? That is subclinical. Was this 100iu hCG?
Do not confuse insulin iu markings with drug iu’s. Please do not report doses in volumes.
Following oral administration to healthy postmenopausal women, plasma concentrations of exemestane decline polyexponentially with a mean terminal half-life of about 24 hours.
You should dose exemestane every day or every other day. Your E2 levels may be moving around and lab timing effects are then possible. This drug does not live up to the hype that you read. Most do well with anastrozole, but some do better with exemestane.