I'm fortunate that, so far, the side effects haven't been all that bad. For me the benefits are worth the minor discomforts and exhaustion. Not everyone is so lucky. For anyone who may be having more serious side effects, it's worth having your BTMs checked to help you decide if what you're going through is worth it.
Even though I'm feeling pretty good overall, if my BTMs indicated that Evenity wasn't doing much, I'd stop the treatment, and would spend the time and money on an alternative.
I had a CTx and P1NP done exactly 2 weeks after my 3rd Evenity injection, and I'm very pleased with the results, so I'll continue the treatment, and get the same tests again in another 3 months.
For anyone curious about the results I'll share them here along with Dr McCormick's reference ranges.
CTx = 355 (reference range 100-375)
P1NP = 102 (reference range 30-50)

Note: I fasted before the tests, had them done at 7:30 in the morning, and stopped taking collagen more than 48 hours beforehand. I don't take biotin supplements.