Your stack is solid already. Add NAC or TUDCA for liver support (Anavar is still 17aa), zinc helps with hormonal balance post cycle, and some women like Maca for energy coming off - mixed results but worth trying. Clitoral enlargement at those doses is common and usually reduces after stopping, though not always 100% so just worth knowing for future cycles.
On Primo - great choice for women, very mild androgenic profile. The needle anxiety disappears after the first one trust me.
GH at 2iu before bed is a smart protocol, the numb hands early on is normal and fades. Jano tests for compound identity and concentration but not heavy metals specifically, though pharma grade you are already in a much better position than generic.

I know absolutely nothing about female ped use, so take this with a grain of salt. I asked the question in a group I am part of that has a dedicated female section and here is the response- hope this helps!

"Typically, Oxandrolone is not as suppressive to the HPG axis as other steroids. Did she lose her period on cycle? Unlike males, the female HPG axis will come back online usually without too much prodding. I assume she just did anavar straight with no HRT in place on top?

No direct supplementation in my experience is necessary provided she already has a good micronutrient support stack already in place. Occasionally we can see DHEA and Pregnenolone go astray on DHT heavy cycles, you would need post cycle labs to confirm and see how everything is doing. Lipids / Liver / Kidney function may be ever so slightly inflamed elevated, but I wouldn't be chasing it with anything special unless we see how it all looks.

SHBG is probably tanked, so you would want to make sure that is recovering, in the meantime if she is experiencing any hair loss / acne - continue to deploy whatever ancillaries you were using on cycle as free testosterone could be very high and will be adding some insult to injury for a few weeks or more until SHBG recovers."