Just a thought -
Side effects of progesterone :
Musculoskeletal
Very common (10% or more): Joint pain (20%), cramps NOS (15%), musculoskeletal pain (12%)
Common (1% to 10%): Back pain, arthralgia, myalgia.
The continuous progesterone may be causing this? Or at least making it worse.
Extract copied below :
How does estrogen affect pain?
Pain intensity tends to increase when estrogen levels are low and progesterone levels are high. In fact, estrogen levels are highest during pregnancy and childbirth, which provides some natural pain relief. There’s a gender gap when it comes to pain—women have more frequent, longer-lasting, and severe pain than men—and estrogen and progesterone are involved in those differences.
PMXX