Lower back / butt pain

45 MTF oral HRT for 6years now. Lately I’ve been experiencing some hip/lower back pain for about 4 weeks now. I’m active daily with HIT workouts and 15min treadmill runs 5 days a week. I work mostly on my feet but after work I sit for about 4hr driving for uber.

During the day I’m mostly fine, unless I have to lift or sit up, when I wake up in the morning, my back is killing me and have to lift myself with my hands.

I’m curious if anyone else has had any issues with bone density issues or muscular/joint pain from HRT? How can I test safely? I can’t fathom not taking my medication.