That's the weird bit, I do think it's more muscular than joint pain. Everything hurts! I would worry about chronic illnesses if it wasn't for the fact that it disappeared during the oestrogen-only parts of my couple of months on sequential HRT. I did have some more focused joint pains (feet, hips, neck), before HRT and those aren't bothering me as much, but instead I constantly feel like I've been lifting weights in my sleep lol.