It is important that your doctors communicate with each other and have all the information they need to treat you. I am glad that you are having a ct scan as it is the only way to see if you have a recurrence. Pain does not always mean a recurrence. I never had any symptoms at all and I have had 4 recurrences for myxoid LMS/ESS.
If you are taking an aromatase inhibitor, you didn't say if you have uterine LMS or not, that would cause the pain. If you have arthritis, it exacerbates it. I had to go on a lesser schedule with it because of the bone pain in hips, upper back, knees and feet. I can't tell if it is better yet or not.
Good luck,
Ro