Girls, I have strange questions again((( I can't understand what it is…

Girls, I have strange questions again((( I can't understand what it is It twists legs, especially the right one, pulls the lower back on the right side, there aren't any unusual discharge, belly doesn't seem to pull. It sometimes goes away for 5-15 seconds and everything. All the time lying down, maybe I've been sitting too long all by myself(((?? In the morning and evening I take vaginal Utrogestan at 200 each, because of the short cervix The next week's dose... For now, I feel like it's okay, my back doesn't hurt, only when I lie down, it starts(