I have a decade of experience with buprenorphine (BUP). When you say 8-12mg a day are you saying you decide each day how much you need? It's never prescribed like this and should be taken at a steady state dose each day around the same time. 12mg is actually quite high and it is rarely, if ever anymore, prescribed over 16mg. Are you given "carries" to have on hand and take yourself or do you have to attend the pharmacy each day or every few days? The clinical studies went as high as 32mg however further studies showed that the Mu receptors are almost fully saturated at 8mg and will bind so hard at 8mg that no other opioid will break through except in a trauma setting via IV.
Have you heard of
sublocade? It's a once a month injection that releases your dose daily over 30 days and therefore negating the need for a daily dose of Suboxone. If you're taking 8-12mg then you have the 8mg tabs and the 4mg's as well which is a pain ED to put under the tongue. Sublocade also makes jumping off BUP quite easy as it releases very slowly over time and does all the titrating work for you. I got off of BUP using sublocade in 2023 after first starting it in 2013 due to prior (and often seen) self medicating for PTSD/Operator Syndrome to stay in the fight and active (bad idea).
Regarding your dose of BUP I'd need to know why you indicated "8-12" ED. Your constipation is likely due to frequent dose changes day to day as well as too high a dose.
You can mitigate the constipation with psyllium husk at 10+g ED and probiotics with each meal. I'm also a big fan of Apple Cider Vinegar with mother.
I forgot you were running HCG since in your log updates your cycle isn't reposted each time, my bad I didn't scroll up. If I had to bet then I'd say HCG is the problem for sure. I'd cut this out entirely and if ball size is something you're concerned with you can run HCGenerate and get it here:
https://www.needtobuildmuscle.com/pct/hcgenerate-n2generate/ HCGenerate had a pronounced effect on my nuts.